Home / 28,650.96-42,981.17-12,012.23

Finding the Fourth Proportional to 28,650.96, 42,981.17 and 12,012.23

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Solution

The fourth proportional to 28,650.96, 42,981.17 and 12,012.23 is: 18,020.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650.96 : 42,981.17 = 12,012.23 : x
  2. Step 2: Convert to fraction form
    28,650.96/42,981.17 = 12,012.23/x
  3. Step 3: Cross multiply
    28,650.96x = 42,981.17 × 12,012.23
  4. Step 4: Simplify right side
    28,650.96x = 516,299,424.74
  5. Step 5: Solve for x
    x = 516,299,424.74/28,650.96
  6. Step 6: Final answer
    x = 18,020.32

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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.