Home / 30,590.28-45,902.13-11,871.05

Finding the Fourth Proportional to 30,590.28, 45,902.13 and 11,871.05

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Solution

The fourth proportional to 30,590.28, 45,902.13 and 11,871.05 is: 17,813.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,590.28 : 45,902.13 = 11,871.05 : x
  2. Step 2: Convert to fraction form
    30,590.28/45,902.13 = 11,871.05/x
  3. Step 3: Cross multiply
    30,590.28x = 45,902.13 × 11,871.05
  4. Step 4: Simplify right side
    30,590.28x = 544,906,480.34
  5. Step 5: Solve for x
    x = 544,906,480.34/30,590.28
  6. Step 6: Final answer
    x = 17,813.06

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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.