Home / 42,270.30-63,403.28-14,190.57

Finding the Fourth Proportional to 42,270.30, 63,403.28 and 14,190.57

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Solution

The fourth proportional to 42,270.30, 63,403.28 and 14,190.57 is: 21,285.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,270.30 : 63,403.28 = 14,190.57 : x
  2. Step 2: Convert to fraction form
    42,270.30/63,403.28 = 14,190.57/x
  3. Step 3: Cross multiply
    42,270.30x = 63,403.28 × 14,190.57
  4. Step 4: Simplify right side
    42,270.30x = 899,728,612.12
  5. Step 5: Solve for x
    x = 899,728,612.12/42,270.30
  6. Step 6: Final answer
    x = 21,285.12

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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.