Home / 28,574.20-42,864.12-9,851.77

Finding the Fourth Proportional to 28,574.20, 42,864.12 and 9,851.77

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Solution

The fourth proportional to 28,574.20, 42,864.12 and 9,851.77 is: 14,778.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,574.20 : 42,864.12 = 9,851.77 : x
  2. Step 2: Convert to fraction form
    28,574.20/42,864.12 = 9,851.77/x
  3. Step 3: Cross multiply
    28,574.20x = 42,864.12 × 9,851.77
  4. Step 4: Simplify right side
    28,574.20x = 422,287,451.49
  5. Step 5: Solve for x
    x = 422,287,451.49/28,574.20
  6. Step 6: Final answer
    x = 14,778.63

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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.