Home / 20,948.02-28,906.55-12,332.84

Finding the Fourth Proportional to 20,948.02, 28,906.55 and 12,332.84

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Solution

The fourth proportional to 20,948.02, 28,906.55 and 12,332.84 is: 17,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,948.02 : 28,906.55 = 12,332.84 : x
  2. Step 2: Convert to fraction form
    20,948.02/28,906.55 = 12,332.84/x
  3. Step 3: Cross multiply
    20,948.02x = 28,906.55 × 12,332.84
  4. Step 4: Simplify right side
    20,948.02x = 356,499,928.12
  5. Step 5: Solve for x
    x = 356,499,928.12/20,948.02
  6. Step 6: Final answer
    x = 17,018.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.