Home / 20,926.08-31,337.28-17,660.16

Finding the Fourth Proportional to 20,926.08, 31,337.28 and 17,660.16

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Solution

The fourth proportional to 20,926.08, 31,337.28 and 17,660.16 is: 26,446.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.08 : 31,337.28 = 17,660.16 : x
  2. Step 2: Convert to fraction form
    20,926.08/31,337.28 = 17,660.16/x
  3. Step 3: Cross multiply
    20,926.08x = 31,337.28 × 17,660.16
  4. Step 4: Simplify right side
    20,926.08x = 553,421,378.76
  5. Step 5: Solve for x
    x = 553,421,378.76/20,926.08
  6. Step 6: Final answer
    x = 26,446.49

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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.