Home / 28,022.32-42,034.36-10,488.80

Finding the Fourth Proportional to 28,022.32, 42,034.36 and 10,488.80

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Solution

The fourth proportional to 28,022.32, 42,034.36 and 10,488.80 is: 15,733.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,022.32 : 42,034.36 = 10,488.80 : x
  2. Step 2: Convert to fraction form
    28,022.32/42,034.36 = 10,488.80/x
  3. Step 3: Cross multiply
    28,022.32x = 42,034.36 × 10,488.80
  4. Step 4: Simplify right side
    28,022.32x = 440,889,995.17
  5. Step 5: Solve for x
    x = 440,889,995.17/28,022.32
  6. Step 6: Final answer
    x = 15,733.53

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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.