Home / 20,875.64-28,808.25-11,444.19

Finding the Fourth Proportional to 20,875.64, 28,808.25 and 11,444.19

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Solution

The fourth proportional to 20,875.64, 28,808.25 and 11,444.19 is: 15,792.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.64 : 28,808.25 = 11,444.19 : x
  2. Step 2: Convert to fraction form
    20,875.64/28,808.25 = 11,444.19/x
  3. Step 3: Cross multiply
    20,875.64x = 28,808.25 × 11,444.19
  4. Step 4: Simplify right side
    20,875.64x = 329,687,086.57
  5. Step 5: Solve for x
    x = 329,687,086.57/20,875.64
  6. Step 6: Final answer
    x = 15,792.91

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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.