Home / 31,591.14-43,585.28-20,841.35

Finding the Fourth Proportional to 31,591.14, 43,585.28 and 20,841.35

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Solution

The fourth proportional to 31,591.14, 43,585.28 and 20,841.35 is: 28,754.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,591.14 : 43,585.28 = 20,841.35 : x
  2. Step 2: Convert to fraction form
    31,591.14/43,585.28 = 20,841.35/x
  3. Step 3: Cross multiply
    31,591.14x = 43,585.28 × 20,841.35
  4. Step 4: Simplify right side
    31,591.14x = 908,376,075.33
  5. Step 5: Solve for x
    x = 908,376,075.33/31,591.14
  6. Step 6: Final answer
    x = 28,754.14

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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.