Home / 42,640.38-63,975.31-14,580.18

Finding the Fourth Proportional to 42,640.38, 63,975.31 and 14,580.18

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Solution

The fourth proportional to 42,640.38, 63,975.31 and 14,580.18 is: 21,875.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,640.38 : 63,975.31 = 14,580.18 : x
  2. Step 2: Convert to fraction form
    42,640.38/63,975.31 = 14,580.18/x
  3. Step 3: Cross multiply
    42,640.38x = 63,975.31 × 14,580.18
  4. Step 4: Simplify right side
    42,640.38x = 932,771,535.36
  5. Step 5: Solve for x
    x = 932,771,535.36/42,640.38
  6. Step 6: Final answer
    x = 21,875.31

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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.