Home / 30,042.36-45,066.60-10,318.36

Finding the Fourth Proportional to 30,042.36, 45,066.60 and 10,318.36

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Solution

The fourth proportional to 30,042.36, 45,066.60 and 10,318.36 is: 15,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,042.36 : 45,066.60 = 10,318.36 : x
  2. Step 2: Convert to fraction form
    30,042.36/45,066.60 = 10,318.36/x
  3. Step 3: Cross multiply
    30,042.36x = 45,066.60 × 10,318.36
  4. Step 4: Simplify right side
    30,042.36x = 465,013,402.78
  5. Step 5: Solve for x
    x = 465,013,402.78/30,042.36
  6. Step 6: Final answer
    x = 15,478.59

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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.