Home / 27,570.95-38,069.36-21,187.44

Finding the Fourth Proportional to 27,570.95, 38,069.36 and 21,187.44

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Solution

The fourth proportional to 27,570.95, 38,069.36 and 21,187.44 is: 29,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,570.95 : 38,069.36 = 21,187.44 : x
  2. Step 2: Convert to fraction form
    27,570.95/38,069.36 = 21,187.44/x
  3. Step 3: Cross multiply
    27,570.95x = 38,069.36 × 21,187.44
  4. Step 4: Simplify right side
    27,570.95x = 806,592,254.35
  5. Step 5: Solve for x
    x = 806,592,254.35/27,570.95
  6. Step 6: Final answer
    x = 29,255.15

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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.