Home / 28,131.92-42,204.36-10,602.08

Finding the Fourth Proportional to 28,131.92, 42,204.36 and 10,602.08

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Solution

The fourth proportional to 28,131.92, 42,204.36 and 10,602.08 is: 15,905.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,131.92 : 42,204.36 = 10,602.08 : x
  2. Step 2: Convert to fraction form
    28,131.92/42,204.36 = 10,602.08/x
  3. Step 3: Cross multiply
    28,131.92x = 42,204.36 × 10,602.08
  4. Step 4: Simplify right side
    28,131.92x = 447,454,001.07
  5. Step 5: Solve for x
    x = 447,454,001.07/28,131.92
  6. Step 6: Final answer
    x = 15,905.56

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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.