Home / 39,905.32-55,070.18-22,001.08

Finding the Fourth Proportional to 39,905.32, 55,070.18 and 22,001.08

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Solution

The fourth proportional to 39,905.32, 55,070.18 and 22,001.08 is: 30,361.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,905.32 : 55,070.18 = 22,001.08 : x
  2. Step 2: Convert to fraction form
    39,905.32/55,070.18 = 22,001.08/x
  3. Step 3: Cross multiply
    39,905.32x = 55,070.18 × 22,001.08
  4. Step 4: Simplify right side
    39,905.32x = 1,211,603,435.79
  5. Step 5: Solve for x
    x = 1,211,603,435.79/39,905.32
  6. Step 6: Final answer
    x = 30,361.95

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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.