Home / 20,637.84-30,937.74-7,487.04

Finding the Fourth Proportional to 20,637.84, 30,937.74 and 7,487.04

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Solution

The fourth proportional to 20,637.84, 30,937.74 and 7,487.04 is: 11,223.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.84 : 30,937.74 = 7,487.04 : x
  2. Step 2: Convert to fraction form
    20,637.84/30,937.74 = 7,487.04/x
  3. Step 3: Cross multiply
    20,637.84x = 30,937.74 × 7,487.04
  4. Step 4: Simplify right side
    20,637.84x = 231,632,096.89
  5. Step 5: Solve for x
    x = 231,632,096.89/20,637.84
  6. Step 6: Final answer
    x = 11,223.66

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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.