Home / 28,564.12-42,854.93-12,782.44

Finding the Fourth Proportional to 28,564.12, 42,854.93 and 12,782.44

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Solution

The fourth proportional to 28,564.12, 42,854.93 and 12,782.44 is: 19,177.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,564.12 : 42,854.93 = 12,782.44 : x
  2. Step 2: Convert to fraction form
    28,564.12/42,854.93 = 12,782.44/x
  3. Step 3: Cross multiply
    28,564.12x = 42,854.93 × 12,782.44
  4. Step 4: Simplify right side
    28,564.12x = 547,790,293.24
  5. Step 5: Solve for x
    x = 547,790,293.24/28,564.12
  6. Step 6: Final answer
    x = 19,177.57

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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.