Home / 25,519.56-38,280.14-21,111.64

Finding the Fourth Proportional to 25,519.56, 38,280.14 and 21,111.64

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Solution

The fourth proportional to 25,519.56, 38,280.14 and 21,111.64 is: 31,668.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,519.56 : 38,280.14 = 21,111.64 : x
  2. Step 2: Convert to fraction form
    25,519.56/38,280.14 = 21,111.64/x
  3. Step 3: Cross multiply
    25,519.56x = 38,280.14 × 21,111.64
  4. Step 4: Simplify right side
    25,519.56x = 808,156,534.83
  5. Step 5: Solve for x
    x = 808,156,534.83/25,519.56
  6. Step 6: Final answer
    x = 31,668.12

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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.