Home / 27,699.22-38,225.56-15,124.06

Finding the Fourth Proportional to 27,699.22, 38,225.56 and 15,124.06

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Solution

The fourth proportional to 27,699.22, 38,225.56 and 15,124.06 is: 20,871.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,699.22 : 38,225.56 = 15,124.06 : x
  2. Step 2: Convert to fraction form
    27,699.22/38,225.56 = 15,124.06/x
  3. Step 3: Cross multiply
    27,699.22x = 38,225.56 × 15,124.06
  4. Step 4: Simplify right side
    27,699.22x = 578,125,662.97
  5. Step 5: Solve for x
    x = 578,125,662.97/27,699.22
  6. Step 6: Final answer
    x = 20,871.55

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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.