Home / 38,787.04-53,557.68-31,618.08

Finding the Fourth Proportional to 38,787.04, 53,557.68 and 31,618.08

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Solution

The fourth proportional to 38,787.04, 53,557.68 and 31,618.08 is: 43,658.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,787.04 : 53,557.68 = 31,618.08 : x
  2. Step 2: Convert to fraction form
    38,787.04/53,557.68 = 31,618.08/x
  3. Step 3: Cross multiply
    38,787.04x = 53,557.68 × 31,618.08
  4. Step 4: Simplify right side
    38,787.04x = 1,693,391,010.85
  5. Step 5: Solve for x
    x = 1,693,391,010.85/38,787.04
  6. Step 6: Final answer
    x = 43,658.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.