Home / 27,782.46-38,299.95-19,810.86

Finding the Fourth Proportional to 27,782.46, 38,299.95 and 19,810.86

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Solution

The fourth proportional to 27,782.46, 38,299.95 and 19,810.86 is: 27,310.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,782.46 : 38,299.95 = 19,810.86 : x
  2. Step 2: Convert to fraction form
    27,782.46/38,299.95 = 19,810.86/x
  3. Step 3: Cross multiply
    27,782.46x = 38,299.95 × 19,810.86
  4. Step 4: Simplify right side
    27,782.46x = 758,754,947.46
  5. Step 5: Solve for x
    x = 758,754,947.46/27,782.46
  6. Step 6: Final answer
    x = 27,310.57

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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.