Home / 39,817.81-54,920.26-32,990.29

Finding the Fourth Proportional to 39,817.81, 54,920.26 and 32,990.29

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Solution

The fourth proportional to 39,817.81, 54,920.26 and 32,990.29 is: 45,503.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,817.81 : 54,920.26 = 32,990.29 : x
  2. Step 2: Convert to fraction form
    39,817.81/54,920.26 = 32,990.29/x
  3. Step 3: Cross multiply
    39,817.81x = 54,920.26 × 32,990.29
  4. Step 4: Simplify right side
    39,817.81x = 1,811,835,304.28
  5. Step 5: Solve for x
    x = 1,811,835,304.28/39,817.81
  6. Step 6: Final answer
    x = 45,503.14

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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.