Home / 20,248.40-27,970.04-18,362.12

Finding the Fourth Proportional to 20,248.40, 27,970.04 and 18,362.12

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Solution

The fourth proportional to 20,248.40, 27,970.04 and 18,362.12 is: 25,364.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.40 : 27,970.04 = 18,362.12 : x
  2. Step 2: Convert to fraction form
    20,248.40/27,970.04 = 18,362.12/x
  3. Step 3: Cross multiply
    20,248.40x = 27,970.04 × 18,362.12
  4. Step 4: Simplify right side
    20,248.40x = 513,589,136.94
  5. Step 5: Solve for x
    x = 513,589,136.94/20,248.40
  6. Step 6: Final answer
    x = 25,364.43

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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.