Home / 28,151.18-42,220.61-9,433.87

Finding the Fourth Proportional to 28,151.18, 42,220.61 and 9,433.87

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Solution

The fourth proportional to 28,151.18, 42,220.61 and 9,433.87 is: 14,148.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,151.18 : 42,220.61 = 9,433.87 : x
  2. Step 2: Convert to fraction form
    28,151.18/42,220.61 = 9,433.87/x
  3. Step 3: Cross multiply
    28,151.18x = 42,220.61 × 9,433.87
  4. Step 4: Simplify right side
    28,151.18x = 398,303,746.06
  5. Step 5: Solve for x
    x = 398,303,746.06/28,151.18
  6. Step 6: Final answer
    x = 14,148.74

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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.