Home / 27,151.95-37,500.80-21,630.99

Finding the Fourth Proportional to 27,151.95, 37,500.80 and 21,630.99

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Solution

The fourth proportional to 27,151.95, 37,500.80 and 21,630.99 is: 29,875.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,151.95 : 37,500.80 = 21,630.99 : x
  2. Step 2: Convert to fraction form
    27,151.95/37,500.80 = 21,630.99/x
  3. Step 3: Cross multiply
    27,151.95x = 37,500.80 × 21,630.99
  4. Step 4: Simplify right side
    27,151.95x = 811,179,321.64
  5. Step 5: Solve for x
    x = 811,179,321.64/27,151.95
  6. Step 6: Final answer
    x = 29,875.55

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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.