Home / 39,394.32-54,361.08-21,488.28

Finding the Fourth Proportional to 39,394.32, 54,361.08 and 21,488.28

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Solution

The fourth proportional to 39,394.32, 54,361.08 and 21,488.28 is: 29,652.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,394.32 : 54,361.08 = 21,488.28 : x
  2. Step 2: Convert to fraction form
    39,394.32/54,361.08 = 21,488.28/x
  3. Step 3: Cross multiply
    39,394.32x = 54,361.08 × 21,488.28
  4. Step 4: Simplify right side
    39,394.32x = 1,168,126,108.14
  5. Step 5: Solve for x
    x = 1,168,126,108.14/39,394.32
  6. Step 6: Final answer
    x = 29,652.15

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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.