Home / 26,605.10-36,718.38-15,278.15

Finding the Fourth Proportional to 26,605.10, 36,718.38 and 15,278.15

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Solution

The fourth proportional to 26,605.10, 36,718.38 and 15,278.15 is: 21,085.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,605.10 : 36,718.38 = 15,278.15 : x
  2. Step 2: Convert to fraction form
    26,605.10/36,718.38 = 15,278.15/x
  3. Step 3: Cross multiply
    26,605.10x = 36,718.38 × 15,278.15
  4. Step 4: Simplify right side
    26,605.10x = 560,988,917.40
  5. Step 5: Solve for x
    x = 560,988,917.40/26,605.10
  6. Step 6: Final answer
    x = 21,085.77

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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.