Home / 21,377.92-29,501.04-11,947.36

Finding the Fourth Proportional to 21,377.92, 29,501.04 and 11,947.36

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Solution

The fourth proportional to 21,377.92, 29,501.04 and 11,947.36 is: 16,487.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,377.92 : 29,501.04 = 11,947.36 : x
  2. Step 2: Convert to fraction form
    21,377.92/29,501.04 = 11,947.36/x
  3. Step 3: Cross multiply
    21,377.92x = 29,501.04 × 11,947.36
  4. Step 4: Simplify right side
    21,377.92x = 352,459,545.25
  5. Step 5: Solve for x
    x = 352,459,545.25/21,377.92
  6. Step 6: Final answer
    x = 16,487.08

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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.