Home / 28,489.95-42,744.42-17,947.80

Finding the Fourth Proportional to 28,489.95, 42,744.42 and 17,947.80

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Solution

The fourth proportional to 28,489.95, 42,744.42 and 17,947.80 is: 26,927.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,489.95 : 42,744.42 = 17,947.80 : x
  2. Step 2: Convert to fraction form
    28,489.95/42,744.42 = 17,947.80/x
  3. Step 3: Cross multiply
    28,489.95x = 42,744.42 × 17,947.80
  4. Step 4: Simplify right side
    28,489.95x = 767,168,301.28
  5. Step 5: Solve for x
    x = 767,168,301.28/28,489.95
  6. Step 6: Final answer
    x = 26,927.68

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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.