Home / 30,590.22-45,902.05-11,870.99

Finding the Fourth Proportional to 30,590.22, 45,902.05 and 11,870.99

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Solution

The fourth proportional to 30,590.22, 45,902.05 and 11,870.99 is: 17,812.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,590.22 : 45,902.05 = 11,870.99 : x
  2. Step 2: Convert to fraction form
    30,590.22/45,902.05 = 11,870.99/x
  3. Step 3: Cross multiply
    30,590.22x = 45,902.05 × 11,870.99
  4. Step 4: Simplify right side
    30,590.22x = 544,902,689.47
  5. Step 5: Solve for x
    x = 544,902,689.47/30,590.22
  6. Step 6: Final answer
    x = 17,812.97

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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.