Home / 39,877.32-55,030.12-22,881.20

Finding the Fourth Proportional to 39,877.32, 55,030.12 and 22,881.20

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Solution

The fourth proportional to 39,877.32, 55,030.12 and 22,881.20 is: 31,575.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,877.32 : 55,030.12 = 22,881.20 : x
  2. Step 2: Convert to fraction form
    39,877.32/55,030.12 = 22,881.20/x
  3. Step 3: Cross multiply
    39,877.32x = 55,030.12 × 22,881.20
  4. Step 4: Simplify right side
    39,877.32x = 1,259,155,181.74
  5. Step 5: Solve for x
    x = 1,259,155,181.74/39,877.32
  6. Step 6: Final answer
    x = 31,575.72

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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.