Home / 20,875.62-28,785.43-16,084.98

Finding the Fourth Proportional to 20,875.62, 28,785.43 and 16,084.98

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Solution

The fourth proportional to 20,875.62, 28,785.43 and 16,084.98 is: 22,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.62 : 28,785.43 = 16,084.98 : x
  2. Step 2: Convert to fraction form
    20,875.62/28,785.43 = 16,084.98/x
  3. Step 3: Cross multiply
    20,875.62x = 28,785.43 × 16,084.98
  4. Step 4: Simplify right side
    20,875.62x = 463,012,995.47
  5. Step 5: Solve for x
    x = 463,012,995.47/20,875.62
  6. Step 6: Final answer
    x = 22,179.60

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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.