Home / 42,477.89-63,677.02-14,378.28

Finding the Fourth Proportional to 42,477.89, 63,677.02 and 14,378.28

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Solution

The fourth proportional to 42,477.89, 63,677.02 and 14,378.28 is: 21,553.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,477.89 : 63,677.02 = 14,378.28 : x
  2. Step 2: Convert to fraction form
    42,477.89/63,677.02 = 14,378.28/x
  3. Step 3: Cross multiply
    42,477.89x = 63,677.02 × 14,378.28
  4. Step 4: Simplify right side
    42,477.89x = 915,565,987.18
  5. Step 5: Solve for x
    x = 915,565,987.18/42,477.89
  6. Step 6: Final answer
    x = 21,553.94

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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.