Home / 23,145.92-31,935.84-13,712.84

Finding the Fourth Proportional to 23,145.92, 31,935.84 and 13,712.84

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Solution

The fourth proportional to 23,145.92, 31,935.84 and 13,712.84 is: 18,920.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,145.92 : 31,935.84 = 13,712.84 : x
  2. Step 2: Convert to fraction form
    23,145.92/31,935.84 = 13,712.84/x
  3. Step 3: Cross multiply
    23,145.92x = 31,935.84 × 13,712.84
  4. Step 4: Simplify right side
    23,145.92x = 437,931,064.19
  5. Step 5: Solve for x
    x = 437,931,064.19/23,145.92
  6. Step 6: Final answer
    x = 18,920.44

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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.