Home / 33,210.18-45,825.12-19,781.10

Finding the Fourth Proportional to 33,210.18, 45,825.12 and 19,781.10

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Solution

The fourth proportional to 33,210.18, 45,825.12 and 19,781.10 is: 27,294.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,210.18 : 45,825.12 = 19,781.10 : x
  2. Step 2: Convert to fraction form
    33,210.18/45,825.12 = 19,781.10/x
  3. Step 3: Cross multiply
    33,210.18x = 45,825.12 × 19,781.10
  4. Step 4: Simplify right side
    33,210.18x = 906,471,281.23
  5. Step 5: Solve for x
    x = 906,471,281.23/33,210.18
  6. Step 6: Final answer
    x = 27,294.98

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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.