Home / 28,302.30-42,361.05-19,510.62

Finding the Fourth Proportional to 28,302.30, 42,361.05 and 19,510.62

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Solution

The fourth proportional to 28,302.30, 42,361.05 and 19,510.62 is: 29,202.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,302.30 : 42,361.05 = 19,510.62 : x
  2. Step 2: Convert to fraction form
    28,302.30/42,361.05 = 19,510.62/x
  3. Step 3: Cross multiply
    28,302.30x = 42,361.05 × 19,510.62
  4. Step 4: Simplify right side
    28,302.30x = 826,490,349.35
  5. Step 5: Solve for x
    x = 826,490,349.35/28,302.30
  6. Step 6: Final answer
    x = 29,202.23

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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.