Home / 39,987.30-55,193.50-24,870.97

Finding the Fourth Proportional to 39,987.30, 55,193.50 and 24,870.97

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Solution

The fourth proportional to 39,987.30, 55,193.50 and 24,870.97 is: 34,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,987.30 : 55,193.50 = 24,870.97 : x
  2. Step 2: Convert to fraction form
    39,987.30/55,193.50 = 24,870.97/x
  3. Step 3: Cross multiply
    39,987.30x = 55,193.50 × 24,870.97
  4. Step 4: Simplify right side
    39,987.30x = 1,372,716,138.01
  5. Step 5: Solve for x
    x = 1,372,716,138.01/39,987.30
  6. Step 6: Final answer
    x = 34,328.80

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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.