Home / 18,943.40-26,166.48-15,371.60

Finding the Fourth Proportional to 18,943.40, 26,166.48 and 15,371.60

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Solution

The fourth proportional to 18,943.40, 26,166.48 and 15,371.60 is: 21,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.40 : 26,166.48 = 15,371.60 : x
  2. Step 2: Convert to fraction form
    18,943.40/26,166.48 = 15,371.60/x
  3. Step 3: Cross multiply
    18,943.40x = 26,166.48 × 15,371.60
  4. Step 4: Simplify right side
    18,943.40x = 402,220,663.97
  5. Step 5: Solve for x
    x = 402,220,663.97/18,943.40
  6. Step 6: Final answer
    x = 21,232.76

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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.