Home / 28,585.91-39,444.62-15,835.95

Finding the Fourth Proportional to 28,585.91, 39,444.62 and 15,835.95

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Solution

The fourth proportional to 28,585.91, 39,444.62 and 15,835.95 is: 21,851.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,585.91 : 39,444.62 = 15,835.95 : x
  2. Step 2: Convert to fraction form
    28,585.91/39,444.62 = 15,835.95/x
  3. Step 3: Cross multiply
    28,585.91x = 39,444.62 × 15,835.95
  4. Step 4: Simplify right side
    28,585.91x = 624,642,950.91
  5. Step 5: Solve for x
    x = 624,642,950.91/28,585.91
  6. Step 6: Final answer
    x = 21,851.43

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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.