Home / 27,376.09-37,780.29-15,439.18

Finding the Fourth Proportional to 27,376.09, 37,780.29 and 15,439.18

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Solution

The fourth proportional to 27,376.09, 37,780.29 and 15,439.18 is: 21,306.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,376.09 : 37,780.29 = 15,439.18 : x
  2. Step 2: Convert to fraction form
    27,376.09/37,780.29 = 15,439.18/x
  3. Step 3: Cross multiply
    27,376.09x = 37,780.29 × 15,439.18
  4. Step 4: Simplify right side
    27,376.09x = 583,296,697.76
  5. Step 5: Solve for x
    x = 583,296,697.76/27,376.09
  6. Step 6: Final answer
    x = 21,306.79

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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.