Home / 20,853.16-28,790.43-16,064.08

Finding the Fourth Proportional to 20,853.16, 28,790.43 and 16,064.08

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Solution

The fourth proportional to 20,853.16, 28,790.43 and 16,064.08 is: 22,178.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853.16 : 28,790.43 = 16,064.08 : x
  2. Step 2: Convert to fraction form
    20,853.16/28,790.43 = 16,064.08/x
  3. Step 3: Cross multiply
    20,853.16x = 28,790.43 × 16,064.08
  4. Step 4: Simplify right side
    20,853.16x = 462,491,920.04
  5. Step 5: Solve for x
    x = 462,491,920.04/20,853.16
  6. Step 6: Final answer
    x = 22,178.51

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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.