Home / 27,561.51-38,053.13-21,176.69

Finding the Fourth Proportional to 27,561.51, 38,053.13 and 21,176.69

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Solution

The fourth proportional to 27,561.51, 38,053.13 and 21,176.69 is: 29,237.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,561.51 : 38,053.13 = 21,176.69 : x
  2. Step 2: Convert to fraction form
    27,561.51/38,053.13 = 21,176.69/x
  3. Step 3: Cross multiply
    27,561.51x = 38,053.13 × 21,176.69
  4. Step 4: Simplify right side
    27,561.51x = 805,839,041.39
  5. Step 5: Solve for x
    x = 805,839,041.39/27,561.51
  6. Step 6: Final answer
    x = 29,237.84

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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.