Home / 30,139.02-41,600.48-18,203.18

Finding the Fourth Proportional to 30,139.02, 41,600.48 and 18,203.18

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Solution

The fourth proportional to 30,139.02, 41,600.48 and 18,203.18 is: 25,125.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139.02 : 41,600.48 = 18,203.18 : x
  2. Step 2: Convert to fraction form
    30,139.02/41,600.48 = 18,203.18/x
  3. Step 3: Cross multiply
    30,139.02x = 41,600.48 × 18,203.18
  4. Step 4: Simplify right side
    30,139.02x = 757,260,726.51
  5. Step 5: Solve for x
    x = 757,260,726.51/30,139.02
  6. Step 6: Final answer
    x = 25,125.59

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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.