Home / 28,369.84-39,144.45-16,432.47

Finding the Fourth Proportional to 28,369.84, 39,144.45 and 16,432.47

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Solution

The fourth proportional to 28,369.84, 39,144.45 and 16,432.47 is: 22,673.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.84 : 39,144.45 = 16,432.47 : x
  2. Step 2: Convert to fraction form
    28,369.84/39,144.45 = 16,432.47/x
  3. Step 3: Cross multiply
    28,369.84x = 39,144.45 × 16,432.47
  4. Step 4: Simplify right side
    28,369.84x = 643,239,722.41
  5. Step 5: Solve for x
    x = 643,239,722.41/28,369.84
  6. Step 6: Final answer
    x = 22,673.36

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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.