Home / 19,445.91-29,168.91-13,190.45

Finding the Fourth Proportional to 19,445.91, 29,168.91 and 13,190.45

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Solution

The fourth proportional to 19,445.91, 29,168.91 and 13,190.45 is: 19,785.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,445.91 : 29,168.91 = 13,190.45 : x
  2. Step 2: Convert to fraction form
    19,445.91/29,168.91 = 13,190.45/x
  3. Step 3: Cross multiply
    19,445.91x = 29,168.91 × 13,190.45
  4. Step 4: Simplify right side
    19,445.91x = 384,750,903.06
  5. Step 5: Solve for x
    x = 384,750,903.06/19,445.91
  6. Step 6: Final answer
    x = 19,785.70

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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.