Home / 20,633.04-28,458.88-18,937.02

Finding the Fourth Proportional to 20,633.04, 28,458.88 and 18,937.02

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Solution

The fourth proportional to 20,633.04, 28,458.88 and 18,937.02 is: 26,119.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.04 : 28,458.88 = 18,937.02 : x
  2. Step 2: Convert to fraction form
    20,633.04/28,458.88 = 18,937.02/x
  3. Step 3: Cross multiply
    20,633.04x = 28,458.88 × 18,937.02
  4. Step 4: Simplify right side
    20,633.04x = 538,926,379.74
  5. Step 5: Solve for x
    x = 538,926,379.74/20,633.04
  6. Step 6: Final answer
    x = 26,119.58

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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.