Home / 35,799.81-49,407.66-20,487.78

Finding the Fourth Proportional to 35,799.81, 49,407.66 and 20,487.78

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Solution

The fourth proportional to 35,799.81, 49,407.66 and 20,487.78 is: 28,275.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,799.81 : 49,407.66 = 20,487.78 : x
  2. Step 2: Convert to fraction form
    35,799.81/49,407.66 = 20,487.78/x
  3. Step 3: Cross multiply
    35,799.81x = 49,407.66 × 20,487.78
  4. Step 4: Simplify right side
    35,799.81x = 1,012,253,268.39
  5. Step 5: Solve for x
    x = 1,012,253,268.39/35,799.81
  6. Step 6: Final answer
    x = 28,275.38

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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.