Home / 27,959.10-38,597.85-21,571.34

Finding the Fourth Proportional to 27,959.10, 38,597.85 and 21,571.34

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Solution

The fourth proportional to 27,959.10, 38,597.85 and 21,571.34 is: 29,779.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,959.10 : 38,597.85 = 21,571.34 : x
  2. Step 2: Convert to fraction form
    27,959.10/38,597.85 = 21,571.34/x
  3. Step 3: Cross multiply
    27,959.10x = 38,597.85 × 21,571.34
  4. Step 4: Simplify right side
    27,959.10x = 832,607,200.88
  5. Step 5: Solve for x
    x = 832,607,200.88/27,959.10
  6. Step 6: Final answer
    x = 29,779.47

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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.