Home / 30,159.30-45,217.08-20,274.06

Finding the Fourth Proportional to 30,159.30, 45,217.08 and 20,274.06

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Solution

The fourth proportional to 30,159.30, 45,217.08 and 20,274.06 is: 30,396.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,159.30 : 45,217.08 = 20,274.06 : x
  2. Step 2: Convert to fraction form
    30,159.30/45,217.08 = 20,274.06/x
  3. Step 3: Cross multiply
    30,159.30x = 45,217.08 × 20,274.06
  4. Step 4: Simplify right side
    30,159.30x = 916,733,792.94
  5. Step 5: Solve for x
    x = 916,733,792.94/30,159.30
  6. Step 6: Final answer
    x = 30,396.39

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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.