Home / 28,950.66-39,885.21-22,228.74

Finding the Fourth Proportional to 28,950.66, 39,885.21 and 22,228.74

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Solution

The fourth proportional to 28,950.66, 39,885.21 and 22,228.74 is: 30,624.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,950.66 : 39,885.21 = 22,228.74 : x
  2. Step 2: Convert to fraction form
    28,950.66/39,885.21 = 22,228.74/x
  3. Step 3: Cross multiply
    28,950.66x = 39,885.21 × 22,228.74
  4. Step 4: Simplify right side
    28,950.66x = 886,597,962.94
  5. Step 5: Solve for x
    x = 886,597,962.94/28,950.66
  6. Step 6: Final answer
    x = 30,624.45

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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.