Home / 28,356.54-39,135.96-16,423.62

Finding the Fourth Proportional to 28,356.54, 39,135.96 and 16,423.62

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Solution

The fourth proportional to 28,356.54, 39,135.96 and 16,423.62 is: 22,666.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,356.54 : 39,135.96 = 16,423.62 : x
  2. Step 2: Convert to fraction form
    28,356.54/39,135.96 = 16,423.62/x
  3. Step 3: Cross multiply
    28,356.54x = 39,135.96 × 16,423.62
  4. Step 4: Simplify right side
    28,356.54x = 642,754,135.38
  5. Step 5: Solve for x
    x = 642,754,135.38/28,356.54
  6. Step 6: Final answer
    x = 22,666.87

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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.