Home / 28,353.96-39,123.66-16,415.22

Finding the Fourth Proportional to 28,353.96, 39,123.66 and 16,415.22

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Solution

The fourth proportional to 28,353.96, 39,123.66 and 16,415.22 is: 22,650.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,353.96 : 39,123.66 = 16,415.22 : x
  2. Step 2: Convert to fraction form
    28,353.96/39,123.66 = 16,415.22/x
  3. Step 3: Cross multiply
    28,353.96x = 39,123.66 × 16,415.22
  4. Step 4: Simplify right side
    28,353.96x = 642,223,486.11
  5. Step 5: Solve for x
    x = 642,223,486.11/28,353.96
  6. Step 6: Final answer
    x = 22,650.22

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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.