Home / 40,507.47-55,899-22,109.87

Finding the Fourth Proportional to 40,507.47, 55,899 and 22,109.87

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Solution

The fourth proportional to 40,507.47, 55,899 and 22,109.87 is: 30,510.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,507.47 : 55,899 = 22,109.87 : x
  2. Step 2: Convert to fraction form
    40,507.47/55,899 = 22,109.87/x
  3. Step 3: Cross multiply
    40,507.47x = 55,899 × 22,109.87
  4. Step 4: Simplify right side
    40,507.47x = 1,235,919,623.13
  5. Step 5: Solve for x
    x = 1,235,919,623.13/40,507.47
  6. Step 6: Final answer
    x = 30,510.91

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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.