Home / 21,167.19-31,750.99-10,074.98

Finding the Fourth Proportional to 21,167.19, 31,750.99 and 10,074.98

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Solution

The fourth proportional to 21,167.19, 31,750.99 and 10,074.98 is: 15,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.19 : 31,750.99 = 10,074.98 : x
  2. Step 2: Convert to fraction form
    21,167.19/31,750.99 = 10,074.98/x
  3. Step 3: Cross multiply
    21,167.19x = 31,750.99 × 10,074.98
  4. Step 4: Simplify right side
    21,167.19x = 319,890,643.42
  5. Step 5: Solve for x
    x = 319,890,643.42/21,167.19
  6. Step 6: Final answer
    x = 15,112.57

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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.