Home / 28,223.22-38,950.77-15,651.06

Finding the Fourth Proportional to 28,223.22, 38,950.77 and 15,651.06

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Solution

The fourth proportional to 28,223.22, 38,950.77 and 15,651.06 is: 21,599.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.22 : 38,950.77 = 15,651.06 : x
  2. Step 2: Convert to fraction form
    28,223.22/38,950.77 = 15,651.06/x
  3. Step 3: Cross multiply
    28,223.22x = 38,950.77 × 15,651.06
  4. Step 4: Simplify right side
    28,223.22x = 609,620,838.32
  5. Step 5: Solve for x
    x = 609,620,838.32/28,223.22
  6. Step 6: Final answer
    x = 21,599.97

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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.