Home / 28,057.50-42,081.64-9,335.07

Finding the Fourth Proportional to 28,057.50, 42,081.64 and 9,335.07

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Solution

The fourth proportional to 28,057.50, 42,081.64 and 9,335.07 is: 14,001.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,057.50 : 42,081.64 = 9,335.07 : x
  2. Step 2: Convert to fraction form
    28,057.50/42,081.64 = 9,335.07/x
  3. Step 3: Cross multiply
    28,057.50x = 42,081.64 × 9,335.07
  4. Step 4: Simplify right side
    28,057.50x = 392,835,163.26
  5. Step 5: Solve for x
    x = 392,835,163.26/28,057.50
  6. Step 6: Final answer
    x = 14,001.07

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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.