Home / 39,547.08-54,573.66-21,640.88

Finding the Fourth Proportional to 39,547.08, 54,573.66 and 21,640.88

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Solution

The fourth proportional to 39,547.08, 54,573.66 and 21,640.88 is: 29,863.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,547.08 : 54,573.66 = 21,640.88 : x
  2. Step 2: Convert to fraction form
    39,547.08/54,573.66 = 21,640.88/x
  3. Step 3: Cross multiply
    39,547.08x = 54,573.66 × 21,640.88
  4. Step 4: Simplify right side
    39,547.08x = 1,181,022,027.22
  5. Step 5: Solve for x
    x = 1,181,022,027.22/39,547.08
  6. Step 6: Final answer
    x = 29,863.70

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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.