Home / 40,013.19-55,218.69-22,108.03

Finding the Fourth Proportional to 40,013.19, 55,218.69 and 22,108.03

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Solution

The fourth proportional to 40,013.19, 55,218.69 and 22,108.03 is: 30,509.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,013.19 : 55,218.69 = 22,108.03 : x
  2. Step 2: Convert to fraction form
    40,013.19/55,218.69 = 22,108.03/x
  3. Step 3: Cross multiply
    40,013.19x = 55,218.69 × 22,108.03
  4. Step 4: Simplify right side
    40,013.19x = 1,220,776,317.03
  5. Step 5: Solve for x
    x = 1,220,776,317.03/40,013.19
  6. Step 6: Final answer
    x = 30,509.35

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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.