Home / 27,968.02-38,595.14-15,221.45

Finding the Fourth Proportional to 27,968.02, 38,595.14 and 15,221.45

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Solution

The fourth proportional to 27,968.02, 38,595.14 and 15,221.45 is: 21,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,968.02 : 38,595.14 = 15,221.45 : x
  2. Step 2: Convert to fraction form
    27,968.02/38,595.14 = 15,221.45/x
  3. Step 3: Cross multiply
    27,968.02x = 38,595.14 × 15,221.45
  4. Step 4: Simplify right side
    27,968.02x = 587,473,917.65
  5. Step 5: Solve for x
    x = 587,473,917.65/27,968.02
  6. Step 6: Final answer
    x = 21,005.20

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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.