Home / 21,924-30,281.04-14,838.12

Finding the Fourth Proportional to 21,924, 30,281.04 and 14,838.12

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Solution

The fourth proportional to 21,924, 30,281.04 and 14,838.12 is: 20,494.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,924 : 30,281.04 = 14,838.12 : x
  2. Step 2: Convert to fraction form
    21,924/30,281.04 = 14,838.12/x
  3. Step 3: Cross multiply
    21,924x = 30,281.04 × 14,838.12
  4. Step 4: Simplify right side
    21,924x = 449,313,705.24
  5. Step 5: Solve for x
    x = 449,313,705.24/21,924
  6. Step 6: Final answer
    x = 20,494.15

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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.