Home / 20,597.06-28,419.18-13,895.12

Finding the Fourth Proportional to 20,597.06, 28,419.18 and 13,895.12

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Solution

The fourth proportional to 20,597.06, 28,419.18 and 13,895.12 is: 19,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,597.06 : 28,419.18 = 13,895.12 : x
  2. Step 2: Convert to fraction form
    20,597.06/28,419.18 = 13,895.12/x
  3. Step 3: Cross multiply
    20,597.06x = 28,419.18 × 13,895.12
  4. Step 4: Simplify right side
    20,597.06x = 394,887,916.40
  5. Step 5: Solve for x
    x = 394,887,916.40/20,597.06
  6. Step 6: Final answer
    x = 19,172.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.