Home / 20,875.59-28,808.15-11,444.13

Finding the Fourth Proportional to 20,875.59, 28,808.15 and 11,444.13

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Solution

The fourth proportional to 20,875.59, 28,808.15 and 11,444.13 is: 15,792.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.59 : 28,808.15 = 11,444.13 : x
  2. Step 2: Convert to fraction form
    20,875.59/28,808.15 = 11,444.13/x
  3. Step 3: Cross multiply
    20,875.59x = 28,808.15 × 11,444.13
  4. Step 4: Simplify right side
    20,875.59x = 329,684,156.44
  5. Step 5: Solve for x
    x = 329,684,156.44/20,875.59
  6. Step 6: Final answer
    x = 15,792.81

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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.