Home / 28,207.06-42,313.40-10,442.47

Finding the Fourth Proportional to 28,207.06, 42,313.40 and 10,442.47

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Solution

The fourth proportional to 28,207.06, 42,313.40 and 10,442.47 is: 15,664.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.06 : 42,313.40 = 10,442.47 : x
  2. Step 2: Convert to fraction form
    28,207.06/42,313.40 = 10,442.47/x
  3. Step 3: Cross multiply
    28,207.06x = 42,313.40 × 10,442.47
  4. Step 4: Simplify right side
    28,207.06x = 441,856,410.10
  5. Step 5: Solve for x
    x = 441,856,410.10/28,207.06
  6. Step 6: Final answer
    x = 15,664.75

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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.