Home / 19,640.18-29,460.29-13,822.76

Finding the Fourth Proportional to 19,640.18, 29,460.29 and 13,822.76

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Solution

The fourth proportional to 19,640.18, 29,460.29 and 13,822.76 is: 20,734.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.18 : 29,460.29 = 13,822.76 : x
  2. Step 2: Convert to fraction form
    19,640.18/29,460.29 = 13,822.76/x
  3. Step 3: Cross multiply
    19,640.18x = 29,460.29 × 13,822.76
  4. Step 4: Simplify right side
    19,640.18x = 407,222,522.74
  5. Step 5: Solve for x
    x = 407,222,522.74/19,640.18
  6. Step 6: Final answer
    x = 20,734.15

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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.