Home / 28,077.80-42,102.61-9,351.25

Finding the Fourth Proportional to 28,077.80, 42,102.61 and 9,351.25

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Solution

The fourth proportional to 28,077.80, 42,102.61 and 9,351.25 is: 14,022.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.80 : 42,102.61 = 9,351.25 : x
  2. Step 2: Convert to fraction form
    28,077.80/42,102.61 = 9,351.25/x
  3. Step 3: Cross multiply
    28,077.80x = 42,102.61 × 9,351.25
  4. Step 4: Simplify right side
    28,077.80x = 393,711,903.13
  5. Step 5: Solve for x
    x = 393,711,903.13/28,077.80
  6. Step 6: Final answer
    x = 14,022.18

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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.