Home / 25,526.76-38,118.08-20,855.97

Finding the Fourth Proportional to 25,526.76, 38,118.08 and 20,855.97

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Solution

The fourth proportional to 25,526.76, 38,118.08 and 20,855.97 is: 31,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,526.76 : 38,118.08 = 20,855.97 : x
  2. Step 2: Convert to fraction form
    25,526.76/38,118.08 = 20,855.97/x
  3. Step 3: Cross multiply
    25,526.76x = 38,118.08 × 20,855.97
  4. Step 4: Simplify right side
    25,526.76x = 794,989,428.66
  5. Step 5: Solve for x
    x = 794,989,428.66/25,526.76
  6. Step 6: Final answer
    x = 31,143.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.