Home / 21,209.04-31,818.66-14,981.16

Finding the Fourth Proportional to 21,209.04, 31,818.66 and 14,981.16

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Solution

The fourth proportional to 21,209.04, 31,818.66 and 14,981.16 is: 22,475.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,209.04 : 31,818.66 = 14,981.16 : x
  2. Step 2: Convert to fraction form
    21,209.04/31,818.66 = 14,981.16/x
  3. Step 3: Cross multiply
    21,209.04x = 31,818.66 × 14,981.16
  4. Step 4: Simplify right side
    21,209.04x = 476,680,436.45
  5. Step 5: Solve for x
    x = 476,680,436.45/21,209.04
  6. Step 6: Final answer
    x = 22,475.34

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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.