Home / 39,215.32-54,108.40-22,218.08

Finding the Fourth Proportional to 39,215.32, 54,108.40 and 22,218.08

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Solution

The fourth proportional to 39,215.32, 54,108.40 and 22,218.08 is: 30,656.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,215.32 : 54,108.40 = 22,218.08 : x
  2. Step 2: Convert to fraction form
    39,215.32/54,108.40 = 22,218.08/x
  3. Step 3: Cross multiply
    39,215.32x = 54,108.40 × 22,218.08
  4. Step 4: Simplify right side
    39,215.32x = 1,202,184,759.87
  5. Step 5: Solve for x
    x = 1,202,184,759.87/39,215.32
  6. Step 6: Final answer
    x = 30,656.00

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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.