Home / 42,270.31-63,403.28-14,190.58

Finding the Fourth Proportional to 42,270.31, 63,403.28 and 14,190.58

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Solution

The fourth proportional to 42,270.31, 63,403.28 and 14,190.58 is: 21,285.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,270.31 : 63,403.28 = 14,190.58 : x
  2. Step 2: Convert to fraction form
    42,270.31/63,403.28 = 14,190.58/x
  3. Step 3: Cross multiply
    42,270.31x = 63,403.28 × 14,190.58
  4. Step 4: Simplify right side
    42,270.31x = 899,729,317.10
  5. Step 5: Solve for x
    x = 899,729,317.10/42,270.31
  6. Step 6: Final answer
    x = 21,285.14

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1.5x scale

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.