Home / 28,175.76-42,298.20-17,830.80

Finding the Fourth Proportional to 28,175.76, 42,298.20 and 17,830.80

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Solution

The fourth proportional to 28,175.76, 42,298.20 and 17,830.80 is: 26,768.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.76 : 42,298.20 = 17,830.80 : x
  2. Step 2: Convert to fraction form
    28,175.76/42,298.20 = 17,830.80/x
  3. Step 3: Cross multiply
    28,175.76x = 42,298.20 × 17,830.80
  4. Step 4: Simplify right side
    28,175.76x = 754,210,744.56
  5. Step 5: Solve for x
    x = 754,210,744.56/28,175.76
  6. Step 6: Final answer
    x = 26,768.07

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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.