Home / 18,685.13-27,989.40-14,967.23

Finding the Fourth Proportional to 18,685.13, 27,989.40 and 14,967.23

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Solution

The fourth proportional to 18,685.13, 27,989.40 and 14,967.23 is: 22,420.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.13 : 27,989.40 = 14,967.23 : x
  2. Step 2: Convert to fraction form
    18,685.13/27,989.40 = 14,967.23/x
  3. Step 3: Cross multiply
    18,685.13x = 27,989.40 × 14,967.23
  4. Step 4: Simplify right side
    18,685.13x = 418,923,787.36
  5. Step 5: Solve for x
    x = 418,923,787.36/18,685.13
  6. Step 6: Final answer
    x = 22,420.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.