Home / 25,428.27-38,130.11-8,782.47

Finding the Fourth Proportional to 25,428.27, 38,130.11 and 8,782.47

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Solution

The fourth proportional to 25,428.27, 38,130.11 and 8,782.47 is: 13,169.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,428.27 : 38,130.11 = 8,782.47 : x
  2. Step 2: Convert to fraction form
    25,428.27/38,130.11 = 8,782.47/x
  3. Step 3: Cross multiply
    25,428.27x = 38,130.11 × 8,782.47
  4. Step 4: Simplify right side
    25,428.27x = 334,876,503.26
  5. Step 5: Solve for x
    x = 334,876,503.26/25,428.27
  6. Step 6: Final answer
    x = 13,169.46

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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.