Home / 30,159.02-41,619.54-18,220.16

Finding the Fourth Proportional to 30,159.02, 41,619.54 and 18,220.16

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Solution

The fourth proportional to 30,159.02, 41,619.54 and 18,220.16 is: 25,143.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,159.02 : 41,619.54 = 18,220.16 : x
  2. Step 2: Convert to fraction form
    30,159.02/41,619.54 = 18,220.16/x
  3. Step 3: Cross multiply
    30,159.02x = 41,619.54 × 18,220.16
  4. Step 4: Simplify right side
    30,159.02x = 758,314,677.93
  5. Step 5: Solve for x
    x = 758,314,677.93/30,159.02
  6. Step 6: Final answer
    x = 25,143.88

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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.