Home / 28,169.64-38,875.14-15,594.66

Finding the Fourth Proportional to 28,169.64, 38,875.14 and 15,594.66

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Solution

The fourth proportional to 28,169.64, 38,875.14 and 15,594.66 is: 21,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169.64 : 38,875.14 = 15,594.66 : x
  2. Step 2: Convert to fraction form
    28,169.64/38,875.14 = 15,594.66/x
  3. Step 3: Cross multiply
    28,169.64x = 38,875.14 × 15,594.66
  4. Step 4: Simplify right side
    28,169.64x = 606,244,590.75
  5. Step 5: Solve for x
    x = 606,244,590.75/28,169.64
  6. Step 6: Final answer
    x = 21,521.20

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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.