Home / 35,775.15-53,645.44-20,988.87

Finding the Fourth Proportional to 35,775.15, 53,645.44 and 20,988.87

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Solution

The fourth proportional to 35,775.15, 53,645.44 and 20,988.87 is: 31,473.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,775.15 : 53,645.44 = 20,988.87 : x
  2. Step 2: Convert to fraction form
    35,775.15/53,645.44 = 20,988.87/x
  3. Step 3: Cross multiply
    35,775.15x = 53,645.44 × 20,988.87
  4. Step 4: Simplify right side
    35,775.15x = 1,125,957,166.25
  5. Step 5: Solve for x
    x = 1,125,957,166.25/35,775.15
  6. Step 6: Final answer
    x = 31,473.16

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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.