Home / 31,917.09-47,897.51-11,140.59

Finding the Fourth Proportional to 31,917.09, 47,897.51 and 11,140.59

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Solution

The fourth proportional to 31,917.09, 47,897.51 and 11,140.59 is: 16,718.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,917.09 : 47,897.51 = 11,140.59 : x
  2. Step 2: Convert to fraction form
    31,917.09/47,897.51 = 11,140.59/x
  3. Step 3: Cross multiply
    31,917.09x = 47,897.51 × 11,140.59
  4. Step 4: Simplify right side
    31,917.09x = 533,606,520.93
  5. Step 5: Solve for x
    x = 533,606,520.93/31,917.09
  6. Step 6: Final answer
    x = 16,718.52

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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.