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Finding the Fourth Proportional to 30,005.65, 44,957.71 and 13,340.17

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Solution

The fourth proportional to 30,005.65, 44,957.71 and 13,340.17 is: 19,987.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.65 : 44,957.71 = 13,340.17 : x
  2. Step 2: Convert to fraction form
    30,005.65/44,957.71 = 13,340.17/x
  3. Step 3: Cross multiply
    30,005.65x = 44,957.71 × 13,340.17
  4. Step 4: Simplify right side
    30,005.65x = 599,743,494.21
  5. Step 5: Solve for x
    x = 599,743,494.21/30,005.65
  6. Step 6: Final answer
    x = 19,987.69

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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.