Home / 31,885.85-47,826.93-12,166.40

Finding the Fourth Proportional to 31,885.85, 47,826.93 and 12,166.40

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Solution

The fourth proportional to 31,885.85, 47,826.93 and 12,166.40 is: 18,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,885.85 : 47,826.93 = 12,166.40 : x
  2. Step 2: Convert to fraction form
    31,885.85/47,826.93 = 12,166.40/x
  3. Step 3: Cross multiply
    31,885.85x = 47,826.93 × 12,166.40
  4. Step 4: Simplify right side
    31,885.85x = 581,881,561.15
  5. Step 5: Solve for x
    x = 581,881,561.15/31,885.85
  6. Step 6: Final answer
    x = 18,248.90

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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.