Home / 40,015.04-55,218.02-22,109.90

Finding the Fourth Proportional to 40,015.04, 55,218.02 and 22,109.90

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Solution

The fourth proportional to 40,015.04, 55,218.02 and 22,109.90 is: 30,510.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,015.04 : 55,218.02 = 22,109.90 : x
  2. Step 2: Convert to fraction form
    40,015.04/55,218.02 = 22,109.90/x
  3. Step 3: Cross multiply
    40,015.04x = 55,218.02 × 22,109.90
  4. Step 4: Simplify right side
    40,015.04x = 1,220,864,513.76
  5. Step 5: Solve for x
    x = 1,220,864,513.76/40,015.04
  6. Step 6: Final answer
    x = 30,510.14

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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.