Home / 38,476.40-57,700.20-13,506.80

Finding the Fourth Proportional to 38,476.40, 57,700.20 and 13,506.80

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Solution

The fourth proportional to 38,476.40, 57,700.20 and 13,506.80 is: 20,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,476.40 : 57,700.20 = 13,506.80 : x
  2. Step 2: Convert to fraction form
    38,476.40/57,700.20 = 13,506.80/x
  3. Step 3: Cross multiply
    38,476.40x = 57,700.20 × 13,506.80
  4. Step 4: Simplify right side
    38,476.40x = 779,345,061.36
  5. Step 5: Solve for x
    x = 779,345,061.36/38,476.40
  6. Step 6: Final answer
    x = 20,255.15

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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.