Home / 40,043.60-55,259.34-22,139.36

Finding the Fourth Proportional to 40,043.60, 55,259.34 and 22,139.36

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Solution

The fourth proportional to 40,043.60, 55,259.34 and 22,139.36 is: 30,551.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,043.60 : 55,259.34 = 22,139.36 : x
  2. Step 2: Convert to fraction form
    40,043.60/55,259.34 = 22,139.36/x
  3. Step 3: Cross multiply
    40,043.60x = 55,259.34 × 22,139.36
  4. Step 4: Simplify right side
    40,043.60x = 1,223,406,421.62
  5. Step 5: Solve for x
    x = 1,223,406,421.62/40,043.60
  6. Step 6: Final answer
    x = 30,551.86

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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.