Home / 31,686.74-47,513.06-12,701.85

Finding the Fourth Proportional to 31,686.74, 47,513.06 and 12,701.85

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Solution

The fourth proportional to 31,686.74, 47,513.06 and 12,701.85 is: 19,045.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,686.74 : 47,513.06 = 12,701.85 : x
  2. Step 2: Convert to fraction form
    31,686.74/47,513.06 = 12,701.85/x
  3. Step 3: Cross multiply
    31,686.74x = 47,513.06 × 12,701.85
  4. Step 4: Simplify right side
    31,686.74x = 603,503,567.11
  5. Step 5: Solve for x
    x = 603,503,567.11/31,686.74
  6. Step 6: Final answer
    x = 19,045.94

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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.