Home / 34,582.08-47,700.72-20,423.28

Finding the Fourth Proportional to 34,582.08, 47,700.72 and 20,423.28

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Solution

The fourth proportional to 34,582.08, 47,700.72 and 20,423.28 is: 28,170.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,582.08 : 47,700.72 = 20,423.28 : x
  2. Step 2: Convert to fraction form
    34,582.08/47,700.72 = 20,423.28/x
  3. Step 3: Cross multiply
    34,582.08x = 47,700.72 × 20,423.28
  4. Step 4: Simplify right side
    34,582.08x = 974,205,160.76
  5. Step 5: Solve for x
    x = 974,205,160.76/34,582.08
  6. Step 6: Final answer
    x = 28,170.81

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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.