Home / 28,737.89-39,653.65-17,981.49

Finding the Fourth Proportional to 28,737.89, 39,653.65 and 17,981.49

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Solution

The fourth proportional to 28,737.89, 39,653.65 and 17,981.49 is: 24,811.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.89 : 39,653.65 = 17,981.49 : x
  2. Step 2: Convert to fraction form
    28,737.89/39,653.65 = 17,981.49/x
  3. Step 3: Cross multiply
    28,737.89x = 39,653.65 × 17,981.49
  4. Step 4: Simplify right side
    28,737.89x = 713,031,882.12
  5. Step 5: Solve for x
    x = 713,031,882.12/28,737.89
  6. Step 6: Final answer
    x = 24,811.56

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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.