Home / 28,018.02-42,046.51-12,214.92

Finding the Fourth Proportional to 28,018.02, 42,046.51 and 12,214.92

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Solution

The fourth proportional to 28,018.02, 42,046.51 and 12,214.92 is: 18,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018.02 : 42,046.51 = 12,214.92 : x
  2. Step 2: Convert to fraction form
    28,018.02/42,046.51 = 12,214.92/x
  3. Step 3: Cross multiply
    28,018.02x = 42,046.51 × 12,214.92
  4. Step 4: Simplify right side
    28,018.02x = 513,594,576.23
  5. Step 5: Solve for x
    x = 513,594,576.23/28,018.02
  6. Step 6: Final answer
    x = 18,330.87

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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.