Home / 31,684.77-47,494.35-12,956.76

Finding the Fourth Proportional to 31,684.77, 47,494.35 and 12,956.76

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Solution

The fourth proportional to 31,684.77, 47,494.35 and 12,956.76 is: 19,421.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,684.77 : 47,494.35 = 12,956.76 : x
  2. Step 2: Convert to fraction form
    31,684.77/47,494.35 = 12,956.76/x
  3. Step 3: Cross multiply
    31,684.77x = 47,494.35 × 12,956.76
  4. Step 4: Simplify right side
    31,684.77x = 615,372,894.31
  5. Step 5: Solve for x
    x = 615,372,894.31/31,684.77
  6. Step 6: Final answer
    x = 19,421.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.