Home / 19,785.79-29,657.62-13,544.07

Finding the Fourth Proportional to 19,785.79, 29,657.62 and 13,544.07

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Solution

The fourth proportional to 19,785.79, 29,657.62 and 13,544.07 is: 20,301.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.79 : 29,657.62 = 13,544.07 : x
  2. Step 2: Convert to fraction form
    19,785.79/29,657.62 = 13,544.07/x
  3. Step 3: Cross multiply
    19,785.79x = 29,657.62 × 13,544.07
  4. Step 4: Simplify right side
    19,785.79x = 401,684,881.31
  5. Step 5: Solve for x
    x = 401,684,881.31/19,785.79
  6. Step 6: Final answer
    x = 20,301.69

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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.