Home / 27,810.82-38,381.68-15,875.95

Finding the Fourth Proportional to 27,810.82, 38,381.68 and 15,875.95

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Solution

The fourth proportional to 27,810.82, 38,381.68 and 15,875.95 is: 21,910.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,810.82 : 38,381.68 = 15,875.95 : x
  2. Step 2: Convert to fraction form
    27,810.82/38,381.68 = 15,875.95/x
  3. Step 3: Cross multiply
    27,810.82x = 38,381.68 × 15,875.95
  4. Step 4: Simplify right side
    27,810.82x = 609,345,632.60
  5. Step 5: Solve for x
    x = 609,345,632.60/27,810.82
  6. Step 6: Final answer
    x = 21,910.38

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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.