Home / 39,064.38-53,908.86-21,159.33

Finding the Fourth Proportional to 39,064.38, 53,908.86 and 21,159.33

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Solution

The fourth proportional to 39,064.38, 53,908.86 and 21,159.33 is: 29,199.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,064.38 : 53,908.86 = 21,159.33 : x
  2. Step 2: Convert to fraction form
    39,064.38/53,908.86 = 21,159.33/x
  3. Step 3: Cross multiply
    39,064.38x = 53,908.86 × 21,159.33
  4. Step 4: Simplify right side
    39,064.38x = 1,140,675,252.87
  5. Step 5: Solve for x
    x = 1,140,675,252.87/39,064.38
  6. Step 6: Final answer
    x = 29,199.88

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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.