Home / 39,345.08-54,296.82-21,440.08

Finding the Fourth Proportional to 39,345.08, 54,296.82 and 21,440.08

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Solution

The fourth proportional to 39,345.08, 54,296.82 and 21,440.08 is: 29,587.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,345.08 : 54,296.82 = 21,440.08 : x
  2. Step 2: Convert to fraction form
    39,345.08/54,296.82 = 21,440.08/x
  3. Step 3: Cross multiply
    39,345.08x = 54,296.82 × 21,440.08
  4. Step 4: Simplify right side
    39,345.08x = 1,164,128,164.55
  5. Step 5: Solve for x
    x = 1,164,128,164.55/39,345.08
  6. Step 6: Final answer
    x = 29,587.64

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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.