Home / 19,590.78-29,390.73-15,603.25

Finding the Fourth Proportional to 19,590.78, 29,390.73 and 15,603.25

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Solution

The fourth proportional to 19,590.78, 29,390.73 and 15,603.25 is: 23,408.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,590.78 : 29,390.73 = 15,603.25 : x
  2. Step 2: Convert to fraction form
    19,590.78/29,390.73 = 15,603.25/x
  3. Step 3: Cross multiply
    19,590.78x = 29,390.73 × 15,603.25
  4. Step 4: Simplify right side
    19,590.78x = 458,590,918.76
  5. Step 5: Solve for x
    x = 458,590,918.76/19,590.78
  6. Step 6: Final answer
    x = 23,408.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.