Home / 28,849-39,810.88-16,272.76

Finding the Fourth Proportional to 28,849, 39,810.88 and 16,272.76

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Solution

The fourth proportional to 28,849, 39,810.88 and 16,272.76 is: 22,455.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,849 : 39,810.88 = 16,272.76 : x
  2. Step 2: Convert to fraction form
    28,849/39,810.88 = 16,272.76/x
  3. Step 3: Cross multiply
    28,849x = 39,810.88 × 16,272.76
  4. Step 4: Simplify right side
    28,849x = 647,832,895.63
  5. Step 5: Solve for x
    x = 647,832,895.63/28,849
  6. Step 6: Final answer
    x = 22,455.99

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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.