Home / 28,124.74-42,187.20-10,589.86

Finding the Fourth Proportional to 28,124.74, 42,187.20 and 10,589.86

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Solution

The fourth proportional to 28,124.74, 42,187.20 and 10,589.86 is: 15,884.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,124.74 : 42,187.20 = 10,589.86 : x
  2. Step 2: Convert to fraction form
    28,124.74/42,187.20 = 10,589.86/x
  3. Step 3: Cross multiply
    28,124.74x = 42,187.20 × 10,589.86
  4. Step 4: Simplify right side
    28,124.74x = 446,756,541.79
  5. Step 5: Solve for x
    x = 446,756,541.79/28,124.74
  6. Step 6: Final answer
    x = 15,884.82

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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.