Home / 19,407.64-29,111.23-13,685.03

Finding the Fourth Proportional to 19,407.64, 29,111.23 and 13,685.03

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Solution

The fourth proportional to 19,407.64, 29,111.23 and 13,685.03 is: 20,527.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,407.64 : 29,111.23 = 13,685.03 : x
  2. Step 2: Convert to fraction form
    19,407.64/29,111.23 = 13,685.03/x
  3. Step 3: Cross multiply
    19,407.64x = 29,111.23 × 13,685.03
  4. Step 4: Simplify right side
    19,407.64x = 398,388,145.77
  5. Step 5: Solve for x
    x = 398,388,145.77/19,407.64
  6. Step 6: Final answer
    x = 20,527.39

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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.