Home / 28,425.92-39,227.85-15,851.48

Finding the Fourth Proportional to 28,425.92, 39,227.85 and 15,851.48

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Solution

The fourth proportional to 28,425.92, 39,227.85 and 15,851.48 is: 21,875.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425.92 : 39,227.85 = 15,851.48 : x
  2. Step 2: Convert to fraction form
    28,425.92/39,227.85 = 15,851.48/x
  3. Step 3: Cross multiply
    28,425.92x = 39,227.85 × 15,851.48
  4. Step 4: Simplify right side
    28,425.92x = 621,819,283.58
  5. Step 5: Solve for x
    x = 621,819,283.58/28,425.92
  6. Step 6: Final answer
    x = 21,875.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.