Home / 40,938.30-61,407.45-14,643.90

Finding the Fourth Proportional to 40,938.30, 61,407.45 and 14,643.90

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Solution

The fourth proportional to 40,938.30, 61,407.45 and 14,643.90 is: 21,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,938.30 : 61,407.45 = 14,643.90 : x
  2. Step 2: Convert to fraction form
    40,938.30/61,407.45 = 14,643.90/x
  3. Step 3: Cross multiply
    40,938.30x = 61,407.45 × 14,643.90
  4. Step 4: Simplify right side
    40,938.30x = 899,244,557.06
  5. Step 5: Solve for x
    x = 899,244,557.06/40,938.30
  6. Step 6: Final answer
    x = 21,965.85

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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.