Home / 19,531.89-26,955.25-11,572.43

Finding the Fourth Proportional to 19,531.89, 26,955.25 and 11,572.43

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Solution

The fourth proportional to 19,531.89, 26,955.25 and 11,572.43 is: 15,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,531.89 : 26,955.25 = 11,572.43 : x
  2. Step 2: Convert to fraction form
    19,531.89/26,955.25 = 11,572.43/x
  3. Step 3: Cross multiply
    19,531.89x = 26,955.25 × 11,572.43
  4. Step 4: Simplify right side
    19,531.89x = 311,937,580.05
  5. Step 5: Solve for x
    x = 311,937,580.05/19,531.89
  6. Step 6: Final answer
    x = 15,970.68

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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.