Home / 26,972.16-40,404.84-12,721.12

Finding the Fourth Proportional to 26,972.16, 40,404.84 and 12,721.12

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Solution

The fourth proportional to 26,972.16, 40,404.84 and 12,721.12 is: 19,056.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,972.16 : 40,404.84 = 12,721.12 : x
  2. Step 2: Convert to fraction form
    26,972.16/40,404.84 = 12,721.12/x
  3. Step 3: Cross multiply
    26,972.16x = 40,404.84 × 12,721.12
  4. Step 4: Simplify right side
    26,972.16x = 513,994,818.22
  5. Step 5: Solve for x
    x = 513,994,818.22/26,972.16
  6. Step 6: Final answer
    x = 19,056.49

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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.