Home / 34,348.92-47,387.61-20,909.40

Finding the Fourth Proportional to 34,348.92, 47,387.61 and 20,909.40

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Solution

The fourth proportional to 34,348.92, 47,387.61 and 20,909.40 is: 28,846.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,348.92 : 47,387.61 = 20,909.40 : x
  2. Step 2: Convert to fraction form
    34,348.92/47,387.61 = 20,909.40/x
  3. Step 3: Cross multiply
    34,348.92x = 47,387.61 × 20,909.40
  4. Step 4: Simplify right side
    34,348.92x = 990,846,492.53
  5. Step 5: Solve for x
    x = 990,846,492.53/34,348.92
  6. Step 6: Final answer
    x = 28,846.51

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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.