Home / 28,472.24-42,708.40-8,750.68

Finding the Fourth Proportional to 28,472.24, 42,708.40 and 8,750.68

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Solution

The fourth proportional to 28,472.24, 42,708.40 and 8,750.68 is: 13,126.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,472.24 : 42,708.40 = 8,750.68 : x
  2. Step 2: Convert to fraction form
    28,472.24/42,708.40 = 8,750.68/x
  3. Step 3: Cross multiply
    28,472.24x = 42,708.40 × 8,750.68
  4. Step 4: Simplify right side
    28,472.24x = 373,727,541.71
  5. Step 5: Solve for x
    x = 373,727,541.71/28,472.24
  6. Step 6: Final answer
    x = 13,126.03

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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.