Home / 35,480.11-53,220.38-10,520.39

Finding the Fourth Proportional to 35,480.11, 53,220.38 and 10,520.39

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Solution

The fourth proportional to 35,480.11, 53,220.38 and 10,520.39 is: 15,780.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,480.11 : 53,220.38 = 10,520.39 : x
  2. Step 2: Convert to fraction form
    35,480.11/53,220.38 = 10,520.39/x
  3. Step 3: Cross multiply
    35,480.11x = 53,220.38 × 10,520.39
  4. Step 4: Simplify right side
    35,480.11x = 559,899,100.95
  5. Step 5: Solve for x
    x = 559,899,100.95/35,480.11
  6. Step 6: Final answer
    x = 15,780.65

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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.