Home / 20,875.68-28,808.56-11,444.16

Finding the Fourth Proportional to 20,875.68, 28,808.56 and 11,444.16

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Solution

The fourth proportional to 20,875.68, 28,808.56 and 11,444.16 is: 15,793.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.68 : 28,808.56 = 11,444.16 : x
  2. Step 2: Convert to fraction form
    20,875.68/28,808.56 = 11,444.16/x
  3. Step 3: Cross multiply
    20,875.68x = 28,808.56 × 11,444.16
  4. Step 4: Simplify right side
    20,875.68x = 329,689,770.01
  5. Step 5: Solve for x
    x = 329,689,770.01/20,875.68
  6. Step 6: Final answer
    x = 15,793.01

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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.