Home / 30,207.10-41,690.34-21,737.26

Finding the Fourth Proportional to 30,207.10, 41,690.34 and 21,737.26

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Solution

The fourth proportional to 30,207.10, 41,690.34 and 21,737.26 is: 30,000.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.10 : 41,690.34 = 21,737.26 : x
  2. Step 2: Convert to fraction form
    30,207.10/41,690.34 = 21,737.26/x
  3. Step 3: Cross multiply
    30,207.10x = 41,690.34 × 21,737.26
  4. Step 4: Simplify right side
    30,207.10x = 906,233,760.07
  5. Step 5: Solve for x
    x = 906,233,760.07/30,207.10
  6. Step 6: Final answer
    x = 30,000.69

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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.