Home / 22,705.71-31,336.65-13,752.99

Finding the Fourth Proportional to 22,705.71, 31,336.65 and 13,752.99

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Solution

The fourth proportional to 22,705.71, 31,336.65 and 13,752.99 is: 18,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,705.71 : 31,336.65 = 13,752.99 : x
  2. Step 2: Convert to fraction form
    22,705.71/31,336.65 = 13,752.99/x
  3. Step 3: Cross multiply
    22,705.71x = 31,336.65 × 13,752.99
  4. Step 4: Simplify right side
    22,705.71x = 430,972,634.08
  5. Step 5: Solve for x
    x = 430,972,634.08/22,705.71
  6. Step 6: Final answer
    x = 18,980.80

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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.