Home / 22,947.45-31,608.48-16,221.51

Finding the Fourth Proportional to 22,947.45, 31,608.48 and 16,221.51

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Solution

The fourth proportional to 22,947.45, 31,608.48 and 16,221.51 is: 22,343.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,947.45 : 31,608.48 = 16,221.51 : x
  2. Step 2: Convert to fraction form
    22,947.45/31,608.48 = 16,221.51/x
  3. Step 3: Cross multiply
    22,947.45x = 31,608.48 × 16,221.51
  4. Step 4: Simplify right side
    22,947.45x = 512,737,274.40
  5. Step 5: Solve for x
    x = 512,737,274.40/22,947.45
  6. Step 6: Final answer
    x = 22,343.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.