Home / 31,347.09-47,062.32-18,208.89

Finding the Fourth Proportional to 31,347.09, 47,062.32 and 18,208.89

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Solution

The fourth proportional to 31,347.09, 47,062.32 and 18,208.89 is: 27,337.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347.09 : 47,062.32 = 18,208.89 : x
  2. Step 2: Convert to fraction form
    31,347.09/47,062.32 = 18,208.89/x
  3. Step 3: Cross multiply
    31,347.09x = 47,062.32 × 18,208.89
  4. Step 4: Simplify right side
    31,347.09x = 856,952,608.02
  5. Step 5: Solve for x
    x = 856,952,608.02/31,347.09
  6. Step 6: Final answer
    x = 27,337.55

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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.