Home / 22,628.66-31,228.12-12,557.52

Finding the Fourth Proportional to 22,628.66, 31,228.12 and 12,557.52

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Solution

The fourth proportional to 22,628.66, 31,228.12 and 12,557.52 is: 17,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,628.66 : 31,228.12 = 12,557.52 : x
  2. Step 2: Convert to fraction form
    22,628.66/31,228.12 = 12,557.52/x
  3. Step 3: Cross multiply
    22,628.66x = 31,228.12 × 12,557.52
  4. Step 4: Simplify right side
    22,628.66x = 392,147,814.00
  5. Step 5: Solve for x
    x = 392,147,814.00/22,628.66
  6. Step 6: Final answer
    x = 17,329.70

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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.