Home / 39,073.92-53,921.96-21,169

Finding the Fourth Proportional to 39,073.92, 53,921.96 and 21,169

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Solution

The fourth proportional to 39,073.92, 53,921.96 and 21,169 is: 29,213.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,073.92 : 53,921.96 = 21,169 : x
  2. Step 2: Convert to fraction form
    39,073.92/53,921.96 = 21,169/x
  3. Step 3: Cross multiply
    39,073.92x = 53,921.96 × 21,169
  4. Step 4: Simplify right side
    39,073.92x = 1,141,473,971.24
  5. Step 5: Solve for x
    x = 1,141,473,971.24/39,073.92
  6. Step 6: Final answer
    x = 29,213.19

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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.