Home / 43,574.90-65,356.18-13,988.84

Finding the Fourth Proportional to 43,574.90, 65,356.18 and 13,988.84

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Solution

The fourth proportional to 43,574.90, 65,356.18 and 13,988.84 is: 20,981.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,574.90 : 65,356.18 = 13,988.84 : x
  2. Step 2: Convert to fraction form
    43,574.90/65,356.18 = 13,988.84/x
  3. Step 3: Cross multiply
    43,574.90x = 65,356.18 × 13,988.84
  4. Step 4: Simplify right side
    43,574.90x = 914,257,145.03
  5. Step 5: Solve for x
    x = 914,257,145.03/43,574.90
  6. Step 6: Final answer
    x = 20,981.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.