Home / 20,373.28-30,520.40-15,026.72

Finding the Fourth Proportional to 20,373.28, 30,520.40 and 15,026.72

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Solution

The fourth proportional to 20,373.28, 30,520.40 and 15,026.72 is: 22,510.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373.28 : 30,520.40 = 15,026.72 : x
  2. Step 2: Convert to fraction form
    20,373.28/30,520.40 = 15,026.72/x
  3. Step 3: Cross multiply
    20,373.28x = 30,520.40 × 15,026.72
  4. Step 4: Simplify right side
    20,373.28x = 458,621,505.09
  5. Step 5: Solve for x
    x = 458,621,505.09/20,373.28
  6. Step 6: Final answer
    x = 22,510.93

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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.