Home / 42,259.29-63,421.06-15,630.47

Finding the Fourth Proportional to 42,259.29, 63,421.06 and 15,630.47

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Solution

The fourth proportional to 42,259.29, 63,421.06 and 15,630.47 is: 23,457.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,259.29 : 63,421.06 = 15,630.47 : x
  2. Step 2: Convert to fraction form
    42,259.29/63,421.06 = 15,630.47/x
  3. Step 3: Cross multiply
    42,259.29x = 63,421.06 × 15,630.47
  4. Step 4: Simplify right side
    42,259.29x = 991,300,975.70
  5. Step 5: Solve for x
    x = 991,300,975.70/42,259.29
  6. Step 6: Final answer
    x = 23,457.59

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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.