Home / 20,860.58-28,764.68-16,070.10

Finding the Fourth Proportional to 20,860.58, 28,764.68 and 16,070.10

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Solution

The fourth proportional to 20,860.58, 28,764.68 and 16,070.10 is: 22,159.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860.58 : 28,764.68 = 16,070.10 : x
  2. Step 2: Convert to fraction form
    20,860.58/28,764.68 = 16,070.10/x
  3. Step 3: Cross multiply
    20,860.58x = 28,764.68 × 16,070.10
  4. Step 4: Simplify right side
    20,860.58x = 462,251,284.07
  5. Step 5: Solve for x
    x = 462,251,284.07/20,860.58
  6. Step 6: Final answer
    x = 22,159.08

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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.