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Finding the Fourth Proportional to 15,477.60, 23,216.40 and 15,218.40

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Solution

The fourth proportional to 15,477.60, 23,216.40 and 15,218.40 is: 22,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.60 : 23,216.40 = 15,218.40 : x
  2. Step 2: Convert to fraction form
    15,477.60/23,216.40 = 15,218.40/x
  3. Step 3: Cross multiply
    15,477.60x = 23,216.40 × 15,218.40
  4. Step 4: Simplify right side
    15,477.60x = 353,316,461.76
  5. Step 5: Solve for x
    x = 353,316,461.76/15,477.60
  6. Step 6: Final answer
    x = 22,827.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.