Home / 28,044.08-42,060.18-10,515.20

Finding the Fourth Proportional to 28,044.08, 42,060.18 and 10,515.20

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Solution

The fourth proportional to 28,044.08, 42,060.18 and 10,515.20 is: 15,770.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,044.08 : 42,060.18 = 10,515.20 : x
  2. Step 2: Convert to fraction form
    28,044.08/42,060.18 = 10,515.20/x
  3. Step 3: Cross multiply
    28,044.08x = 42,060.18 × 10,515.20
  4. Step 4: Simplify right side
    28,044.08x = 442,271,204.74
  5. Step 5: Solve for x
    x = 442,271,204.74/28,044.08
  6. Step 6: Final answer
    x = 15,770.57

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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.