Home / 39,232.12-54,140.58-21,327.28

Finding the Fourth Proportional to 39,232.12, 54,140.58 and 21,327.28

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Solution

The fourth proportional to 39,232.12, 54,140.58 and 21,327.28 is: 29,431.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,232.12 : 54,140.58 = 21,327.28 : x
  2. Step 2: Convert to fraction form
    39,232.12/54,140.58 = 21,327.28/x
  3. Step 3: Cross multiply
    39,232.12x = 54,140.58 × 21,327.28
  4. Step 4: Simplify right side
    39,232.12x = 1,154,671,309.02
  5. Step 5: Solve for x
    x = 1,154,671,309.02/39,232.12
  6. Step 6: Final answer
    x = 29,431.78

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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.