Home / 25,681.88-38,513.10-10,091

Finding the Fourth Proportional to 25,681.88, 38,513.10 and 10,091

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Solution

The fourth proportional to 25,681.88, 38,513.10 and 10,091 is: 15,132.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,681.88 : 38,513.10 = 10,091 : x
  2. Step 2: Convert to fraction form
    25,681.88/38,513.10 = 10,091/x
  3. Step 3: Cross multiply
    25,681.88x = 38,513.10 × 10,091
  4. Step 4: Simplify right side
    25,681.88x = 388,635,692.10
  5. Step 5: Solve for x
    x = 388,635,692.10/25,681.88
  6. Step 6: Final answer
    x = 15,132.68

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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.