Home / 21,314.91-31,965.45-10,068.51

Finding the Fourth Proportional to 21,314.91, 31,965.45 and 10,068.51

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Solution

The fourth proportional to 21,314.91, 31,965.45 and 10,068.51 is: 15,099.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.91 : 31,965.45 = 10,068.51 : x
  2. Step 2: Convert to fraction form
    21,314.91/31,965.45 = 10,068.51/x
  3. Step 3: Cross multiply
    21,314.91x = 31,965.45 × 10,068.51
  4. Step 4: Simplify right side
    21,314.91x = 321,844,452.98
  5. Step 5: Solve for x
    x = 321,844,452.98/21,314.91
  6. Step 6: Final answer
    x = 15,099.50

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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.