Home / 21,707.19-32,615.28-13,813.14

Finding the Fourth Proportional to 21,707.19, 32,615.28 and 13,813.14

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Solution

The fourth proportional to 21,707.19, 32,615.28 and 13,813.14 is: 20,754.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,707.19 : 32,615.28 = 13,813.14 : x
  2. Step 2: Convert to fraction form
    21,707.19/32,615.28 = 13,813.14/x
  3. Step 3: Cross multiply
    21,707.19x = 32,615.28 × 13,813.14
  4. Step 4: Simplify right side
    21,707.19x = 450,519,428.78
  5. Step 5: Solve for x
    x = 450,519,428.78/21,707.19
  6. Step 6: Final answer
    x = 20,754.39

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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.