Home / 40,739.46-61,070.94-21,012.72

Finding the Fourth Proportional to 40,739.46, 61,070.94 and 21,012.72

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Solution

The fourth proportional to 40,739.46, 61,070.94 and 21,012.72 is: 31,499.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,739.46 : 61,070.94 = 21,012.72 : x
  2. Step 2: Convert to fraction form
    40,739.46/61,070.94 = 21,012.72/x
  3. Step 3: Cross multiply
    40,739.46x = 61,070.94 × 21,012.72
  4. Step 4: Simplify right side
    40,739.46x = 1,283,266,562.36
  5. Step 5: Solve for x
    x = 1,283,266,562.36/40,739.46
  6. Step 6: Final answer
    x = 31,499.35

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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.