Home / 30,712.57-46,041.46-11,988.25

Finding the Fourth Proportional to 30,712.57, 46,041.46 and 11,988.25

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Solution

The fourth proportional to 30,712.57, 46,041.46 and 11,988.25 is: 17,971.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,712.57 : 46,041.46 = 11,988.25 : x
  2. Step 2: Convert to fraction form
    30,712.57/46,041.46 = 11,988.25/x
  3. Step 3: Cross multiply
    30,712.57x = 46,041.46 × 11,988.25
  4. Step 4: Simplify right side
    30,712.57x = 551,956,714.19
  5. Step 5: Solve for x
    x = 551,956,714.19/30,712.57
  6. Step 6: Final answer
    x = 17,971.69

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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.