Home / 40,945.36-61,381.51-15,979.60

Finding the Fourth Proportional to 40,945.36, 61,381.51 and 15,979.60

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Solution

The fourth proportional to 40,945.36, 61,381.51 and 15,979.60 is: 23,955.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,945.36 : 61,381.51 = 15,979.60 : x
  2. Step 2: Convert to fraction form
    40,945.36/61,381.51 = 15,979.60/x
  3. Step 3: Cross multiply
    40,945.36x = 61,381.51 × 15,979.60
  4. Step 4: Simplify right side
    40,945.36x = 980,851,977.20
  5. Step 5: Solve for x
    x = 980,851,977.20/40,945.36
  6. Step 6: Final answer
    x = 23,955.14

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1.5x scale

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.