Home / 25,602.79-38,421.61-15,711.88

Finding the Fourth Proportional to 25,602.79, 38,421.61 and 15,711.88

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Solution

The fourth proportional to 25,602.79, 38,421.61 and 15,711.88 is: 23,578.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,602.79 : 38,421.61 = 15,711.88 : x
  2. Step 2: Convert to fraction form
    25,602.79/38,421.61 = 15,711.88/x
  3. Step 3: Cross multiply
    25,602.79x = 38,421.61 × 15,711.88
  4. Step 4: Simplify right side
    25,602.79x = 603,675,647.17
  5. Step 5: Solve for x
    x = 603,675,647.17/25,602.79
  6. Step 6: Final answer
    x = 23,578.51

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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.