Home / 20,395.04-28,157.75-13,598.62

Finding the Fourth Proportional to 20,395.04, 28,157.75 and 13,598.62

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Solution

The fourth proportional to 20,395.04, 28,157.75 and 13,598.62 is: 18,774.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,395.04 : 28,157.75 = 13,598.62 : x
  2. Step 2: Convert to fraction form
    20,395.04/28,157.75 = 13,598.62/x
  3. Step 3: Cross multiply
    20,395.04x = 28,157.75 × 13,598.62
  4. Step 4: Simplify right side
    20,395.04x = 382,906,542.31
  5. Step 5: Solve for x
    x = 382,906,542.31/20,395.04
  6. Step 6: Final answer
    x = 18,774.49

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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.