Home / 39,960.66-55,147.51-22,970.42

Finding the Fourth Proportional to 39,960.66, 55,147.51 and 22,970.42

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Solution

The fourth proportional to 39,960.66, 55,147.51 and 22,970.42 is: 31,700.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960.66 : 55,147.51 = 22,970.42 : x
  2. Step 2: Convert to fraction form
    39,960.66/55,147.51 = 22,970.42/x
  3. Step 3: Cross multiply
    39,960.66x = 55,147.51 × 22,970.42
  4. Step 4: Simplify right side
    39,960.66x = 1,266,761,466.65
  5. Step 5: Solve for x
    x = 1,266,761,466.65/39,960.66
  6. Step 6: Final answer
    x = 31,700.21

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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.