Home / 27,869.69-38,460.06-15,122.93

Finding the Fourth Proportional to 27,869.69, 38,460.06 and 15,122.93

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Solution

The fourth proportional to 27,869.69, 38,460.06 and 15,122.93 is: 20,869.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,869.69 : 38,460.06 = 15,122.93 : x
  2. Step 2: Convert to fraction form
    27,869.69/38,460.06 = 15,122.93/x
  3. Step 3: Cross multiply
    27,869.69x = 38,460.06 × 15,122.93
  4. Step 4: Simplify right side
    27,869.69x = 581,628,602.88
  5. Step 5: Solve for x
    x = 581,628,602.88/27,869.69
  6. Step 6: Final answer
    x = 20,869.58

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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.