Home / 19,402.20-29,054.70-12,792.60

Finding the Fourth Proportional to 19,402.20, 29,054.70 and 12,792.60

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Solution

The fourth proportional to 19,402.20, 29,054.70 and 12,792.60 is: 19,156.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,402.20 : 29,054.70 = 12,792.60 : x
  2. Step 2: Convert to fraction form
    19,402.20/29,054.70 = 12,792.60/x
  3. Step 3: Cross multiply
    19,402.20x = 29,054.70 × 12,792.60
  4. Step 4: Simplify right side
    19,402.20x = 371,685,155.22
  5. Step 5: Solve for x
    x = 371,685,155.22/19,402.20
  6. Step 6: Final answer
    x = 19,156.86

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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.