Home / 20,643.39-30,950.19-16,699.50

Finding the Fourth Proportional to 20,643.39, 30,950.19 and 16,699.50

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Solution

The fourth proportional to 20,643.39, 30,950.19 and 16,699.50 is: 25,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643.39 : 30,950.19 = 16,699.50 : x
  2. Step 2: Convert to fraction form
    20,643.39/30,950.19 = 16,699.50/x
  3. Step 3: Cross multiply
    20,643.39x = 30,950.19 × 16,699.50
  4. Step 4: Simplify right side
    20,643.39x = 516,852,697.91
  5. Step 5: Solve for x
    x = 516,852,697.91/20,643.39
  6. Step 6: Final answer
    x = 25,037.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.