Home / 33,335.52-45,961.20-21,377.76

Finding the Fourth Proportional to 33,335.52, 45,961.20 and 21,377.76

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Solution

The fourth proportional to 33,335.52, 45,961.20 and 21,377.76 is: 29,474.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,335.52 : 45,961.20 = 21,377.76 : x
  2. Step 2: Convert to fraction form
    33,335.52/45,961.20 = 21,377.76/x
  3. Step 3: Cross multiply
    33,335.52x = 45,961.20 × 21,377.76
  4. Step 4: Simplify right side
    33,335.52x = 982,547,502.91
  5. Step 5: Solve for x
    x = 982,547,502.91/33,335.52
  6. Step 6: Final answer
    x = 29,474.49

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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.