Home / 27,135.33-37,445.65-15,805.18

Finding the Fourth Proportional to 27,135.33, 37,445.65 and 15,805.18

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Solution

The fourth proportional to 27,135.33, 37,445.65 and 15,805.18 is: 21,810.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135.33 : 37,445.65 = 15,805.18 : x
  2. Step 2: Convert to fraction form
    27,135.33/37,445.65 = 15,805.18/x
  3. Step 3: Cross multiply
    27,135.33x = 37,445.65 × 15,805.18
  4. Step 4: Simplify right side
    27,135.33x = 591,835,238.47
  5. Step 5: Solve for x
    x = 591,835,238.47/27,135.33
  6. Step 6: Final answer
    x = 21,810.50

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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.