Home / 22,394.63-30,886.43-13,890.84

Finding the Fourth Proportional to 22,394.63, 30,886.43 and 13,890.84

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Solution

The fourth proportional to 22,394.63, 30,886.43 and 13,890.84 is: 19,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,394.63 : 30,886.43 = 13,890.84 : x
  2. Step 2: Convert to fraction form
    22,394.63/30,886.43 = 13,890.84/x
  3. Step 3: Cross multiply
    22,394.63x = 30,886.43 × 13,890.84
  4. Step 4: Simplify right side
    22,394.63x = 429,038,387.85
  5. Step 5: Solve for x
    x = 429,038,387.85/22,394.63
  6. Step 6: Final answer
    x = 19,158.10

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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.