Home / 19,820.90-27,352.35-12,265.22

Finding the Fourth Proportional to 19,820.90, 27,352.35 and 12,265.22

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Solution

The fourth proportional to 19,820.90, 27,352.35 and 12,265.22 is: 16,925.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.90 : 27,352.35 = 12,265.22 : x
  2. Step 2: Convert to fraction form
    19,820.90/27,352.35 = 12,265.22/x
  3. Step 3: Cross multiply
    19,820.90x = 27,352.35 × 12,265.22
  4. Step 4: Simplify right side
    19,820.90x = 335,482,658.65
  5. Step 5: Solve for x
    x = 335,482,658.65/19,820.90
  6. Step 6: Final answer
    x = 16,925.70

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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.