Home / 27,381.93-37,788.21-15,445.26

Finding the Fourth Proportional to 27,381.93, 37,788.21 and 15,445.26

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Solution

The fourth proportional to 27,381.93, 37,788.21 and 15,445.26 is: 21,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,381.93 : 37,788.21 = 15,445.26 : x
  2. Step 2: Convert to fraction form
    27,381.93/37,788.21 = 15,445.26/x
  3. Step 3: Cross multiply
    27,381.93x = 37,788.21 × 15,445.26
  4. Step 4: Simplify right side
    27,381.93x = 583,648,728.38
  5. Step 5: Solve for x
    x = 583,648,728.38/27,381.93
  6. Step 6: Final answer
    x = 21,315.11

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Double scale
Find fourth proportional to 27,382.93, 37,789.59 and 15,446.26
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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.