Home / 28,899.20-43,348.80-17,818.40

Finding the Fourth Proportional to 28,899.20, 43,348.80 and 17,818.40

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Solution

The fourth proportional to 28,899.20, 43,348.80 and 17,818.40 is: 26,727.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,899.20 : 43,348.80 = 17,818.40 : x
  2. Step 2: Convert to fraction form
    28,899.20/43,348.80 = 17,818.40/x
  3. Step 3: Cross multiply
    28,899.20x = 43,348.80 × 17,818.40
  4. Step 4: Simplify right side
    28,899.20x = 772,406,257.92
  5. Step 5: Solve for x
    x = 772,406,257.92/28,899.20
  6. Step 6: Final answer
    x = 26,727.60

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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.