Home / 30,528.90-45,902.70-29,872.80

Finding the Fourth Proportional to 30,528.90, 45,902.70 and 29,872.80

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Solution

The fourth proportional to 30,528.90, 45,902.70 and 29,872.80 is: 44,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528.90 : 45,902.70 = 29,872.80 : x
  2. Step 2: Convert to fraction form
    30,528.90/45,902.70 = 29,872.80/x
  3. Step 3: Cross multiply
    30,528.90x = 45,902.70 × 29,872.80
  4. Step 4: Simplify right side
    30,528.90x = 1,371,242,176.56
  5. Step 5: Solve for x
    x = 1,371,242,176.56/30,528.90
  6. Step 6: Final answer
    x = 44,916.20

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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.