Home / 19,501.12-29,359.60-13,385.28

Finding the Fourth Proportional to 19,501.12, 29,359.60 and 13,385.28

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Solution

The fourth proportional to 19,501.12, 29,359.60 and 13,385.28 is: 20,151.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,501.12 : 29,359.60 = 13,385.28 : x
  2. Step 2: Convert to fraction form
    19,501.12/29,359.60 = 13,385.28/x
  3. Step 3: Cross multiply
    19,501.12x = 29,359.60 × 13,385.28
  4. Step 4: Simplify right side
    19,501.12x = 392,986,466.69
  5. Step 5: Solve for x
    x = 392,986,466.69/19,501.12
  6. Step 6: Final answer
    x = 20,151.99

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.