Home / 42,420.16-63,631.20-14,718.08

Finding the Fourth Proportional to 42,420.16, 63,631.20 and 14,718.08

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Solution

The fourth proportional to 42,420.16, 63,631.20 and 14,718.08 is: 22,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,420.16 : 63,631.20 = 14,718.08 : x
  2. Step 2: Convert to fraction form
    42,420.16/63,631.20 = 14,718.08/x
  3. Step 3: Cross multiply
    42,420.16x = 63,631.20 × 14,718.08
  4. Step 4: Simplify right side
    42,420.16x = 936,529,092.10
  5. Step 5: Solve for x
    x = 936,529,092.10/42,420.16
  6. Step 6: Final answer
    x = 22,077.45

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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.