Home / 27,816.70-38,386.79-15,069.59

Finding the Fourth Proportional to 27,816.70, 38,386.79 and 15,069.59

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Solution

The fourth proportional to 27,816.70, 38,386.79 and 15,069.59 is: 20,795.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,816.70 : 38,386.79 = 15,069.59 : x
  2. Step 2: Convert to fraction form
    27,816.70/38,386.79 = 15,069.59/x
  3. Step 3: Cross multiply
    27,816.70x = 38,386.79 × 15,069.59
  4. Step 4: Simplify right side
    27,816.70x = 578,473,186.72
  5. Step 5: Solve for x
    x = 578,473,186.72/27,816.70
  6. Step 6: Final answer
    x = 20,795.90

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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.