Home / 31,920.93-47,879.60-14,146.47

Finding the Fourth Proportional to 31,920.93, 47,879.60 and 14,146.47

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Solution

The fourth proportional to 31,920.93, 47,879.60 and 14,146.47 is: 21,218.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,920.93 : 47,879.60 = 14,146.47 : x
  2. Step 2: Convert to fraction form
    31,920.93/47,879.60 = 14,146.47/x
  3. Step 3: Cross multiply
    31,920.93x = 47,879.60 × 14,146.47
  4. Step 4: Simplify right side
    31,920.93x = 677,327,254.28
  5. Step 5: Solve for x
    x = 677,327,254.28/31,920.93
  6. Step 6: Final answer
    x = 21,218.91

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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.