Home / 20,437.16-28,200.12-11,482.94

Finding the Fourth Proportional to 20,437.16, 28,200.12 and 11,482.94

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Solution

The fourth proportional to 20,437.16, 28,200.12 and 11,482.94 is: 15,844.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.16 : 28,200.12 = 11,482.94 : x
  2. Step 2: Convert to fraction form
    20,437.16/28,200.12 = 11,482.94/x
  3. Step 3: Cross multiply
    20,437.16x = 28,200.12 × 11,482.94
  4. Step 4: Simplify right side
    20,437.16x = 323,820,144.95
  5. Step 5: Solve for x
    x = 323,820,144.95/20,437.16
  6. Step 6: Final answer
    x = 15,844.68

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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.