Home / 28,899.63-39,880.23-16,152.75

Finding the Fourth Proportional to 28,899.63, 39,880.23 and 16,152.75

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Solution

The fourth proportional to 28,899.63, 39,880.23 and 16,152.75 is: 22,290.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,899.63 : 39,880.23 = 16,152.75 : x
  2. Step 2: Convert to fraction form
    28,899.63/39,880.23 = 16,152.75/x
  3. Step 3: Cross multiply
    28,899.63x = 39,880.23 × 16,152.75
  4. Step 4: Simplify right side
    28,899.63x = 644,175,385.13
  5. Step 5: Solve for x
    x = 644,175,385.13/28,899.63
  6. Step 6: Final answer
    x = 22,290.09

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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.