Home / 22,775.68-31,429.12-12,703.36

Finding the Fourth Proportional to 22,775.68, 31,429.12 and 12,703.36

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Solution

The fourth proportional to 22,775.68, 31,429.12 and 12,703.36 is: 17,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,775.68 : 31,429.12 = 12,703.36 : x
  2. Step 2: Convert to fraction form
    22,775.68/31,429.12 = 12,703.36/x
  3. Step 3: Cross multiply
    22,775.68x = 31,429.12 × 12,703.36
  4. Step 4: Simplify right side
    22,775.68x = 399,255,425.84
  5. Step 5: Solve for x
    x = 399,255,425.84/22,775.68
  6. Step 6: Final answer
    x = 17,529.90

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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.