Home / 28,408.84-39,203.13-16,472.68

Finding the Fourth Proportional to 28,408.84, 39,203.13 and 16,472.68

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Solution

The fourth proportional to 28,408.84, 39,203.13 and 16,472.68 is: 22,731.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.84 : 39,203.13 = 16,472.68 : x
  2. Step 2: Convert to fraction form
    28,408.84/39,203.13 = 16,472.68/x
  3. Step 3: Cross multiply
    28,408.84x = 39,203.13 × 16,472.68
  4. Step 4: Simplify right side
    28,408.84x = 645,780,615.49
  5. Step 5: Solve for x
    x = 645,780,615.49/28,408.84
  6. Step 6: Final answer
    x = 22,731.68

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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.