Home / 19,281.11-28,888.61-12,944.12

Finding the Fourth Proportional to 19,281.11, 28,888.61 and 12,944.12

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Solution

The fourth proportional to 19,281.11, 28,888.61 and 12,944.12 is: 19,393.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,281.11 : 28,888.61 = 12,944.12 : x
  2. Step 2: Convert to fraction form
    19,281.11/28,888.61 = 12,944.12/x
  3. Step 3: Cross multiply
    19,281.11x = 28,888.61 × 12,944.12
  4. Step 4: Simplify right side
    19,281.11x = 373,937,425.31
  5. Step 5: Solve for x
    x = 373,937,425.31/19,281.11
  6. Step 6: Final answer
    x = 19,393.98

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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.