Home / 27,309.60-37,686.42-15,373.56

Finding the Fourth Proportional to 27,309.60, 37,686.42 and 15,373.56

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Solution

The fourth proportional to 27,309.60, 37,686.42 and 15,373.56 is: 21,215.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,309.60 : 37,686.42 = 15,373.56 : x
  2. Step 2: Convert to fraction form
    27,309.60/37,686.42 = 15,373.56/x
  3. Step 3: Cross multiply
    27,309.60x = 37,686.42 × 15,373.56
  4. Step 4: Simplify right side
    27,309.60x = 579,374,439.06
  5. Step 5: Solve for x
    x = 579,374,439.06/27,309.60
  6. Step 6: Final answer
    x = 21,215.05

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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.