Home / 28,285.60-42,428.40-23,101.60

Finding the Fourth Proportional to 28,285.60, 42,428.40 and 23,101.60

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Solution

The fourth proportional to 28,285.60, 42,428.40 and 23,101.60 is: 34,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,285.60 : 42,428.40 = 23,101.60 : x
  2. Step 2: Convert to fraction form
    28,285.60/42,428.40 = 23,101.60/x
  3. Step 3: Cross multiply
    28,285.60x = 42,428.40 × 23,101.60
  4. Step 4: Simplify right side
    28,285.60x = 980,163,925.44
  5. Step 5: Solve for x
    x = 980,163,925.44/28,285.60
  6. Step 6: Final answer
    x = 34,652.40

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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.