Home / 28,363.14-39,139.47-16,425.63

Finding the Fourth Proportional to 28,363.14, 39,139.47 and 16,425.63

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Solution

The fourth proportional to 28,363.14, 39,139.47 and 16,425.63 is: 22,666.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,363.14 : 39,139.47 = 16,425.63 : x
  2. Step 2: Convert to fraction form
    28,363.14/39,139.47 = 16,425.63/x
  3. Step 3: Cross multiply
    28,363.14x = 39,139.47 × 16,425.63
  4. Step 4: Simplify right side
    28,363.14x = 642,890,452.62
  5. Step 5: Solve for x
    x = 642,890,452.62/28,363.14
  6. Step 6: Final answer
    x = 22,666.41

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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.