Home / 30,211.20-41,688-17,637.12

Finding the Fourth Proportional to 30,211.20, 41,688 and 17,637.12

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Solution

The fourth proportional to 30,211.20, 41,688 and 17,637.12 is: 24,337.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.20 : 41,688 = 17,637.12 : x
  2. Step 2: Convert to fraction form
    30,211.20/41,688 = 17,637.12/x
  3. Step 3: Cross multiply
    30,211.20x = 41,688 × 17,637.12
  4. Step 4: Simplify right side
    30,211.20x = 735,256,258.56
  5. Step 5: Solve for x
    x = 735,256,258.56/30,211.20
  6. Step 6: Final answer
    x = 24,337.21

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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.