Home / 39,637.50-54,699.33-21,732.46

Finding the Fourth Proportional to 39,637.50, 54,699.33 and 21,732.46

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Solution

The fourth proportional to 39,637.50, 54,699.33 and 21,732.46 is: 29,990.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,637.50 : 54,699.33 = 21,732.46 : x
  2. Step 2: Convert to fraction form
    39,637.50/54,699.33 = 21,732.46/x
  3. Step 3: Cross multiply
    39,637.50x = 54,699.33 × 21,732.46
  4. Step 4: Simplify right side
    39,637.50x = 1,188,750,823.76
  5. Step 5: Solve for x
    x = 1,188,750,823.76/39,637.50
  6. Step 6: Final answer
    x = 29,990.56

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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.