Home / 40,945.38-61,415.16-15,980.76

Finding the Fourth Proportional to 40,945.38, 61,415.16 and 15,980.76

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Solution

The fourth proportional to 40,945.38, 61,415.16 and 15,980.76 is: 23,970.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,945.38 : 61,415.16 = 15,980.76 : x
  2. Step 2: Convert to fraction form
    40,945.38/61,415.16 = 15,980.76/x
  3. Step 3: Cross multiply
    40,945.38x = 61,415.16 × 15,980.76
  4. Step 4: Simplify right side
    40,945.38x = 981,460,932.32
  5. Step 5: Solve for x
    x = 981,460,932.32/40,945.38
  6. Step 6: Final answer
    x = 23,970.00

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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.