Home / 18,603.08-28,032.51-15,388.19

Finding the Fourth Proportional to 18,603.08, 28,032.51 and 15,388.19

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Solution

The fourth proportional to 18,603.08, 28,032.51 and 15,388.19 is: 23,188.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.08 : 28,032.51 = 15,388.19 : x
  2. Step 2: Convert to fraction form
    18,603.08/28,032.51 = 15,388.19/x
  3. Step 3: Cross multiply
    18,603.08x = 28,032.51 × 15,388.19
  4. Step 4: Simplify right side
    18,603.08x = 431,369,590.06
  5. Step 5: Solve for x
    x = 431,369,590.06/18,603.08
  6. Step 6: Final answer
    x = 23,188.07

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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.