Home / 28,179.56-38,887.98-15,604.52

Finding the Fourth Proportional to 28,179.56, 38,887.98 and 15,604.52

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Solution

The fourth proportional to 28,179.56, 38,887.98 and 15,604.52 is: 21,534.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.56 : 38,887.98 = 15,604.52 : x
  2. Step 2: Convert to fraction form
    28,179.56/38,887.98 = 15,604.52/x
  3. Step 3: Cross multiply
    28,179.56x = 38,887.98 × 15,604.52
  4. Step 4: Simplify right side
    28,179.56x = 606,828,261.67
  5. Step 5: Solve for x
    x = 606,828,261.67/28,179.56
  6. Step 6: Final answer
    x = 21,534.34

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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.