Home / 20,637.32-30,957.62-12,373.72

Finding the Fourth Proportional to 20,637.32, 30,957.62 and 12,373.72

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Solution

The fourth proportional to 20,637.32, 30,957.62 and 12,373.72 is: 18,561.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.32 : 30,957.62 = 12,373.72 : x
  2. Step 2: Convert to fraction form
    20,637.32/30,957.62 = 12,373.72/x
  3. Step 3: Cross multiply
    20,637.32x = 30,957.62 × 12,373.72
  4. Step 4: Simplify right side
    20,637.32x = 383,060,921.75
  5. Step 5: Solve for x
    x = 383,060,921.75/20,637.32
  6. Step 6: Final answer
    x = 18,561.56

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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.