Home / 20,615.95-28,425.07-17,423.62

Finding the Fourth Proportional to 20,615.95, 28,425.07 and 17,423.62

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Solution

The fourth proportional to 20,615.95, 28,425.07 and 17,423.62 is: 24,023.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615.95 : 28,425.07 = 17,423.62 : x
  2. Step 2: Convert to fraction form
    20,615.95/28,425.07 = 17,423.62/x
  3. Step 3: Cross multiply
    20,615.95x = 28,425.07 × 17,423.62
  4. Step 4: Simplify right side
    20,615.95x = 495,267,568.87
  5. Step 5: Solve for x
    x = 495,267,568.87/20,615.95
  6. Step 6: Final answer
    x = 24,023.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.