Home / 27,193.47-40,783.56-21,255.66

Finding the Fourth Proportional to 27,193.47, 40,783.56 and 21,255.66

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Solution

The fourth proportional to 27,193.47, 40,783.56 and 21,255.66 is: 31,878.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,193.47 : 40,783.56 = 21,255.66 : x
  2. Step 2: Convert to fraction form
    27,193.47/40,783.56 = 21,255.66/x
  3. Step 3: Cross multiply
    27,193.47x = 40,783.56 × 21,255.66
  4. Step 4: Simplify right side
    27,193.47x = 866,881,484.95
  5. Step 5: Solve for x
    x = 866,881,484.95/27,193.47
  6. Step 6: Final answer
    x = 31,878.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.