Home / 18,601.17-28,029.63-15,386.28

Finding the Fourth Proportional to 18,601.17, 28,029.63 and 15,386.28

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Solution

The fourth proportional to 18,601.17, 28,029.63 and 15,386.28 is: 23,185.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.17 : 28,029.63 = 15,386.28 : x
  2. Step 2: Convert to fraction form
    18,601.17/28,029.63 = 15,386.28/x
  3. Step 3: Cross multiply
    18,601.17x = 28,029.63 × 15,386.28
  4. Step 4: Simplify right side
    18,601.17x = 431,271,735.48
  5. Step 5: Solve for x
    x = 431,271,735.48/18,601.17
  6. Step 6: Final answer
    x = 23,185.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.