Home / 28,248.14-38,981.45-18,177.01

Finding the Fourth Proportional to 28,248.14, 38,981.45 and 18,177.01

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Solution

The fourth proportional to 28,248.14, 38,981.45 and 18,177.01 is: 25,083.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.14 : 38,981.45 = 18,177.01 : x
  2. Step 2: Convert to fraction form
    28,248.14/38,981.45 = 18,177.01/x
  3. Step 3: Cross multiply
    28,248.14x = 38,981.45 × 18,177.01
  4. Step 4: Simplify right side
    28,248.14x = 708,566,154.45
  5. Step 5: Solve for x
    x = 708,566,154.45/28,248.14
  6. Step 6: Final answer
    x = 25,083.64

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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.