Home / 27,971.90-38,597.70-18,916.96

Finding the Fourth Proportional to 27,971.90, 38,597.70 and 18,916.96

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Solution

The fourth proportional to 27,971.90, 38,597.70 and 18,916.96 is: 26,103.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,971.90 : 38,597.70 = 18,916.96 : x
  2. Step 2: Convert to fraction form
    27,971.90/38,597.70 = 18,916.96/x
  3. Step 3: Cross multiply
    27,971.90x = 38,597.70 × 18,916.96
  4. Step 4: Simplify right side
    27,971.90x = 730,151,146.99
  5. Step 5: Solve for x
    x = 730,151,146.99/27,971.90
  6. Step 6: Final answer
    x = 26,103.02

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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.