Home / 28,444.68-42,663.27-8,453.76

Finding the Fourth Proportional to 28,444.68, 42,663.27 and 8,453.76

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Solution

The fourth proportional to 28,444.68, 42,663.27 and 8,453.76 is: 12,679.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.68 : 42,663.27 = 8,453.76 : x
  2. Step 2: Convert to fraction form
    28,444.68/42,663.27 = 8,453.76/x
  3. Step 3: Cross multiply
    28,444.68x = 42,663.27 × 8,453.76
  4. Step 4: Simplify right side
    28,444.68x = 360,665,045.40
  5. Step 5: Solve for x
    x = 360,665,045.40/28,444.68
  6. Step 6: Final answer
    x = 12,679.53

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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.