Home / 31,117.70-46,689.38-11,129.92

Finding the Fourth Proportional to 31,117.70, 46,689.38 and 11,129.92

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Solution

The fourth proportional to 31,117.70, 46,689.38 and 11,129.92 is: 16,699.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,117.70 : 46,689.38 = 11,129.92 : x
  2. Step 2: Convert to fraction form
    31,117.70/46,689.38 = 11,129.92/x
  3. Step 3: Cross multiply
    31,117.70x = 46,689.38 × 11,129.92
  4. Step 4: Simplify right side
    31,117.70x = 519,648,933.61
  5. Step 5: Solve for x
    x = 519,648,933.61/31,117.70
  6. Step 6: Final answer
    x = 16,699.46

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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.