Home / 33,130.32-45,721.05-18,985.90

Finding the Fourth Proportional to 33,130.32, 45,721.05 and 18,985.90

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Solution

The fourth proportional to 33,130.32, 45,721.05 and 18,985.90 is: 26,201.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,130.32 : 45,721.05 = 18,985.90 : x
  2. Step 2: Convert to fraction form
    33,130.32/45,721.05 = 18,985.90/x
  3. Step 3: Cross multiply
    33,130.32x = 45,721.05 × 18,985.90
  4. Step 4: Simplify right side
    33,130.32x = 868,055,283.20
  5. Step 5: Solve for x
    x = 868,055,283.20/33,130.32
  6. Step 6: Final answer
    x = 26,201.23

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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.