Home / 28,117.08-38,800.23-15,370.92

Finding the Fourth Proportional to 28,117.08, 38,800.23 and 15,370.92

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Solution

The fourth proportional to 28,117.08, 38,800.23 and 15,370.92 is: 21,211.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,117.08 : 38,800.23 = 15,370.92 : x
  2. Step 2: Convert to fraction form
    28,117.08/38,800.23 = 15,370.92/x
  3. Step 3: Cross multiply
    28,117.08x = 38,800.23 × 15,370.92
  4. Step 4: Simplify right side
    28,117.08x = 596,395,231.31
  5. Step 5: Solve for x
    x = 596,395,231.31/28,117.08
  6. Step 6: Final answer
    x = 21,211.14

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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.