Home / 30,337.68-41,882.52-20,956.72

Finding the Fourth Proportional to 30,337.68, 41,882.52 and 20,956.72

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Solution

The fourth proportional to 30,337.68, 41,882.52 and 20,956.72 is: 28,931.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,337.68 : 41,882.52 = 20,956.72 : x
  2. Step 2: Convert to fraction form
    30,337.68/41,882.52 = 20,956.72/x
  3. Step 3: Cross multiply
    30,337.68x = 41,882.52 × 20,956.72
  4. Step 4: Simplify right side
    30,337.68x = 877,720,244.53
  5. Step 5: Solve for x
    x = 877,720,244.53/30,337.68
  6. Step 6: Final answer
    x = 28,931.69

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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.