Home / 22,645.84-31,246.30-13,693.20

Finding the Fourth Proportional to 22,645.84, 31,246.30 and 13,693.20

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Solution

The fourth proportional to 22,645.84, 31,246.30 and 13,693.20 is: 18,893.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,645.84 : 31,246.30 = 13,693.20 : x
  2. Step 2: Convert to fraction form
    22,645.84/31,246.30 = 13,693.20/x
  3. Step 3: Cross multiply
    22,645.84x = 31,246.30 × 13,693.20
  4. Step 4: Simplify right side
    22,645.84x = 427,861,835.16
  5. Step 5: Solve for x
    x = 427,861,835.16/22,645.84
  6. Step 6: Final answer
    x = 18,893.62

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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.