Home / 42,302.28-63,457.32-13,839.39

Finding the Fourth Proportional to 42,302.28, 63,457.32 and 13,839.39

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Solution

The fourth proportional to 42,302.28, 63,457.32 and 13,839.39 is: 20,760.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,302.28 : 63,457.32 = 13,839.39 : x
  2. Step 2: Convert to fraction form
    42,302.28/63,457.32 = 13,839.39/x
  3. Step 3: Cross multiply
    42,302.28x = 63,457.32 × 13,839.39
  4. Step 4: Simplify right side
    42,302.28x = 878,210,599.83
  5. Step 5: Solve for x
    x = 878,210,599.83/42,302.28
  6. Step 6: Final answer
    x = 20,760.36

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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.