Home / 20,496.60-28,295.97-13,817.34

Finding the Fourth Proportional to 20,496.60, 28,295.97 and 13,817.34

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Solution

The fourth proportional to 20,496.60, 28,295.97 and 13,817.34 is: 19,075.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,496.60 : 28,295.97 = 13,817.34 : x
  2. Step 2: Convert to fraction form
    20,496.60/28,295.97 = 13,817.34/x
  3. Step 3: Cross multiply
    20,496.60x = 28,295.97 × 13,817.34
  4. Step 4: Simplify right side
    20,496.60x = 390,975,038.12
  5. Step 5: Solve for x
    x = 390,975,038.12/20,496.60
  6. Step 6: Final answer
    x = 19,075.12

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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.