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Finding the Fourth Proportional to 15,504.70, 23,231.45 and 13,200.70

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Solution

The fourth proportional to 15,504.70, 23,231.45 and 13,200.70 is: 19,779.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,504.70 : 23,231.45 = 13,200.70 : x
  2. Step 2: Convert to fraction form
    15,504.70/23,231.45 = 13,200.70/x
  3. Step 3: Cross multiply
    15,504.70x = 23,231.45 × 13,200.70
  4. Step 4: Simplify right side
    15,504.70x = 306,671,402.02
  5. Step 5: Solve for x
    x = 306,671,402.02/15,504.70
  6. Step 6: Final answer
    x = 19,779.25

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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.