Home / 28,230.27-42,347.02-8,506.77

Finding the Fourth Proportional to 28,230.27, 42,347.02 and 8,506.77

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Solution

The fourth proportional to 28,230.27, 42,347.02 and 8,506.77 is: 12,760.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.27 : 42,347.02 = 8,506.77 : x
  2. Step 2: Convert to fraction form
    28,230.27/42,347.02 = 8,506.77/x
  3. Step 3: Cross multiply
    28,230.27x = 42,347.02 × 8,506.77
  4. Step 4: Simplify right side
    28,230.27x = 360,236,147.59
  5. Step 5: Solve for x
    x = 360,236,147.59/28,230.27
  6. Step 6: Final answer
    x = 12,760.64

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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.