Home / 19,578.24-29,365.20-19,140.48

Finding the Fourth Proportional to 19,578.24, 29,365.20 and 19,140.48

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Solution

The fourth proportional to 19,578.24, 29,365.20 and 19,140.48 is: 28,708.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.24 : 29,365.20 = 19,140.48 : x
  2. Step 2: Convert to fraction form
    19,578.24/29,365.20 = 19,140.48/x
  3. Step 3: Cross multiply
    19,578.24x = 29,365.20 × 19,140.48
  4. Step 4: Simplify right side
    19,578.24x = 562,064,023.30
  5. Step 5: Solve for x
    x = 562,064,023.30/19,578.24
  6. Step 6: Final answer
    x = 28,708.61

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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.