Home / 42,428.45-63,642.86-14,348.66

Finding the Fourth Proportional to 42,428.45, 63,642.86 and 14,348.66

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Solution

The fourth proportional to 42,428.45, 63,642.86 and 14,348.66 is: 21,523.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,428.45 : 63,642.86 = 14,348.66 : x
  2. Step 2: Convert to fraction form
    42,428.45/63,642.86 = 14,348.66/x
  3. Step 3: Cross multiply
    42,428.45x = 63,642.86 × 14,348.66
  4. Step 4: Simplify right side
    42,428.45x = 913,189,369.61
  5. Step 5: Solve for x
    x = 913,189,369.61/42,428.45
  6. Step 6: Final answer
    x = 21,523.05

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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.