Home / 39,322.38-54,264.60-21,417.32

Finding the Fourth Proportional to 39,322.38, 54,264.60 and 21,417.32

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Solution

The fourth proportional to 39,322.38, 54,264.60 and 21,417.32 is: 29,555.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,322.38 : 54,264.60 = 21,417.32 : x
  2. Step 2: Convert to fraction form
    39,322.38/54,264.60 = 21,417.32/x
  3. Step 3: Cross multiply
    39,322.38x = 54,264.60 × 21,417.32
  4. Step 4: Simplify right side
    39,322.38x = 1,162,202,302.87
  5. Step 5: Solve for x
    x = 1,162,202,302.87/39,322.38
  6. Step 6: Final answer
    x = 29,555.75

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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.