Home / 23,456.79-35,208.89-20,805.76

Finding the Fourth Proportional to 23,456.79, 35,208.89 and 20,805.76

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Solution

The fourth proportional to 23,456.79, 35,208.89 and 20,805.76 is: 31,229.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,456.79 : 35,208.89 = 20,805.76 : x
  2. Step 2: Convert to fraction form
    23,456.79/35,208.89 = 20,805.76/x
  3. Step 3: Cross multiply
    23,456.79x = 35,208.89 × 20,805.76
  4. Step 4: Simplify right side
    23,456.79x = 732,547,435.13
  5. Step 5: Solve for x
    x = 732,547,435.13/23,456.79
  6. Step 6: Final answer
    x = 31,229.66

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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.