Home / 20,158.04-27,807.53-13,695.36

Finding the Fourth Proportional to 20,158.04, 27,807.53 and 13,695.36

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Solution

The fourth proportional to 20,158.04, 27,807.53 and 13,695.36 is: 18,892.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.04 : 27,807.53 = 13,695.36 : x
  2. Step 2: Convert to fraction form
    20,158.04/27,807.53 = 13,695.36/x
  3. Step 3: Cross multiply
    20,158.04x = 27,807.53 × 13,695.36
  4. Step 4: Simplify right side
    20,158.04x = 380,834,065.58
  5. Step 5: Solve for x
    x = 380,834,065.58/20,158.04
  6. Step 6: Final answer
    x = 18,892.42

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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.