Home / 30,540.82-45,802.70-10,814.08

Finding the Fourth Proportional to 30,540.82, 45,802.70 and 10,814.08

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Solution

The fourth proportional to 30,540.82, 45,802.70 and 10,814.08 is: 16,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,540.82 : 45,802.70 = 10,814.08 : x
  2. Step 2: Convert to fraction form
    30,540.82/45,802.70 = 10,814.08/x
  3. Step 3: Cross multiply
    30,540.82x = 45,802.70 × 10,814.08
  4. Step 4: Simplify right side
    30,540.82x = 495,314,062.02
  5. Step 5: Solve for x
    x = 495,314,062.02/30,540.82
  6. Step 6: Final answer
    x = 16,218.10

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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.