Home / 28,248.05-38,982.20-15,501.44

Finding the Fourth Proportional to 28,248.05, 38,982.20 and 15,501.44

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Solution

The fourth proportional to 28,248.05, 38,982.20 and 15,501.44 is: 21,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.05 : 38,982.20 = 15,501.44 : x
  2. Step 2: Convert to fraction form
    28,248.05/38,982.20 = 15,501.44/x
  3. Step 3: Cross multiply
    28,248.05x = 38,982.20 × 15,501.44
  4. Step 4: Simplify right side
    28,248.05x = 604,280,254.32
  5. Step 5: Solve for x
    x = 604,280,254.32/28,248.05
  6. Step 6: Final answer
    x = 21,391.93

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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.