Home / 21,065.46-28,909.87-19,071.64

Finding the Fourth Proportional to 21,065.46, 28,909.87 and 19,071.64

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Solution

The fourth proportional to 21,065.46, 28,909.87 and 19,071.64 is: 26,173.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065.46 : 28,909.87 = 19,071.64 : x
  2. Step 2: Convert to fraction form
    21,065.46/28,909.87 = 19,071.64/x
  3. Step 3: Cross multiply
    21,065.46x = 28,909.87 × 19,071.64
  4. Step 4: Simplify right side
    21,065.46x = 551,358,633.09
  5. Step 5: Solve for x
    x = 551,358,633.09/21,065.46
  6. Step 6: Final answer
    x = 26,173.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.