Home / 22,950.74-31,671.18-13,390.82

Finding the Fourth Proportional to 22,950.74, 31,671.18 and 13,390.82

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Solution

The fourth proportional to 22,950.74, 31,671.18 and 13,390.82 is: 18,478.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,950.74 : 31,671.18 = 13,390.82 : x
  2. Step 2: Convert to fraction form
    22,950.74/31,671.18 = 13,390.82/x
  3. Step 3: Cross multiply
    22,950.74x = 31,671.18 × 13,390.82
  4. Step 4: Simplify right side
    22,950.74x = 424,102,993.32
  5. Step 5: Solve for x
    x = 424,102,993.32/22,950.74
  6. Step 6: Final answer
    x = 18,478.84

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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.