Home / 28,681.20-43,008.84-10,213.68

Finding the Fourth Proportional to 28,681.20, 43,008.84 and 10,213.68

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Solution

The fourth proportional to 28,681.20, 43,008.84 and 10,213.68 is: 15,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,681.20 : 43,008.84 = 10,213.68 : x
  2. Step 2: Convert to fraction form
    28,681.20/43,008.84 = 10,213.68/x
  3. Step 3: Cross multiply
    28,681.20x = 43,008.84 × 10,213.68
  4. Step 4: Simplify right side
    28,681.20x = 439,278,528.93
  5. Step 5: Solve for x
    x = 439,278,528.93/28,681.20
  6. Step 6: Final answer
    x = 15,315.90

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1.5x scale

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.