Home / 17,139.36-23,663.40-15,343.68

Finding the Fourth Proportional to 17,139.36, 23,663.40 and 15,343.68

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Solution

The fourth proportional to 17,139.36, 23,663.40 and 15,343.68 is: 21,184.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,139.36 : 23,663.40 = 15,343.68 : x
  2. Step 2: Convert to fraction form
    17,139.36/23,663.40 = 15,343.68/x
  3. Step 3: Cross multiply
    17,139.36x = 23,663.40 × 15,343.68
  4. Step 4: Simplify right side
    17,139.36x = 363,083,637.31
  5. Step 5: Solve for x
    x = 363,083,637.31/17,139.36
  6. Step 6: Final answer
    x = 21,184.20

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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.