Home / 22,956.86-31,679.49-12,886.13

Finding the Fourth Proportional to 22,956.86, 31,679.49 and 12,886.13

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Solution

The fourth proportional to 22,956.86, 31,679.49 and 12,886.13 is: 17,782.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,956.86 : 31,679.49 = 12,886.13 : x
  2. Step 2: Convert to fraction form
    22,956.86/31,679.49 = 12,886.13/x
  3. Step 3: Cross multiply
    22,956.86x = 31,679.49 × 12,886.13
  4. Step 4: Simplify right side
    22,956.86x = 408,225,868.08
  5. Step 5: Solve for x
    x = 408,225,868.08/22,956.86
  6. Step 6: Final answer
    x = 17,782.31

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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.