Home / 35,725.68-53,581.20-13,531.40

Finding the Fourth Proportional to 35,725.68, 53,581.20 and 13,531.40

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Solution

The fourth proportional to 35,725.68, 53,581.20 and 13,531.40 is: 20,294.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,725.68 : 53,581.20 = 13,531.40 : x
  2. Step 2: Convert to fraction form
    35,725.68/53,581.20 = 13,531.40/x
  3. Step 3: Cross multiply
    35,725.68x = 53,581.20 × 13,531.40
  4. Step 4: Simplify right side
    35,725.68x = 725,028,649.68
  5. Step 5: Solve for x
    x = 725,028,649.68/35,725.68
  6. Step 6: Final answer
    x = 20,294.33

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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.