Home / 28,488.94-42,742.92-17,946.78

Finding the Fourth Proportional to 28,488.94, 42,742.92 and 17,946.78

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Solution

The fourth proportional to 28,488.94, 42,742.92 and 17,946.78 is: 26,926.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,488.94 : 42,742.92 = 17,946.78 : x
  2. Step 2: Convert to fraction form
    28,488.94/42,742.92 = 17,946.78/x
  3. Step 3: Cross multiply
    28,488.94x = 42,742.92 × 17,946.78
  4. Step 4: Simplify right side
    28,488.94x = 767,097,781.80
  5. Step 5: Solve for x
    x = 767,097,781.80/28,488.94
  6. Step 6: Final answer
    x = 26,926.16

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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.