Home / 39,071.27-53,918.13-21,166.62

Finding the Fourth Proportional to 39,071.27, 53,918.13 and 21,166.62

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Solution

The fourth proportional to 39,071.27, 53,918.13 and 21,166.62 is: 29,209.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,071.27 : 53,918.13 = 21,166.62 : x
  2. Step 2: Convert to fraction form
    39,071.27/53,918.13 = 21,166.62/x
  3. Step 3: Cross multiply
    39,071.27x = 53,918.13 × 21,166.62
  4. Step 4: Simplify right side
    39,071.27x = 1,141,264,568.82
  5. Step 5: Solve for x
    x = 1,141,264,568.82/39,071.27
  6. Step 6: Final answer
    x = 29,209.82

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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.