Home / 28,895.69-39,874.11-16,319.63

Finding the Fourth Proportional to 28,895.69, 39,874.11 and 16,319.63

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Solution

The fourth proportional to 28,895.69, 39,874.11 and 16,319.63 is: 22,519.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,895.69 : 39,874.11 = 16,319.63 : x
  2. Step 2: Convert to fraction form
    28,895.69/39,874.11 = 16,319.63/x
  3. Step 3: Cross multiply
    28,895.69x = 39,874.11 × 16,319.63
  4. Step 4: Simplify right side
    28,895.69x = 650,730,522.41
  5. Step 5: Solve for x
    x = 650,730,522.41/28,895.69
  6. Step 6: Final answer
    x = 22,519.99

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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.