Home / 42,430.55-63,619.61-14,347.98

Finding the Fourth Proportional to 42,430.55, 63,619.61 and 14,347.98

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Solution

The fourth proportional to 42,430.55, 63,619.61 and 14,347.98 is: 21,513.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,430.55 : 63,619.61 = 14,347.98 : x
  2. Step 2: Convert to fraction form
    42,430.55/63,619.61 = 14,347.98/x
  3. Step 3: Cross multiply
    42,430.55x = 63,619.61 × 14,347.98
  4. Step 4: Simplify right side
    42,430.55x = 912,812,820.15
  5. Step 5: Solve for x
    x = 912,812,820.15/42,430.55
  6. Step 6: Final answer
    x = 21,513.11

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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.