Home / 30,017.36-45,053.18-15,989.11

Finding the Fourth Proportional to 30,017.36, 45,053.18 and 15,989.11

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Solution

The fourth proportional to 30,017.36, 45,053.18 and 15,989.11 is: 23,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,017.36 : 45,053.18 = 15,989.11 : x
  2. Step 2: Convert to fraction form
    30,017.36/45,053.18 = 15,989.11/x
  3. Step 3: Cross multiply
    30,017.36x = 45,053.18 × 15,989.11
  4. Step 4: Simplify right side
    30,017.36x = 720,359,945.66
  5. Step 5: Solve for x
    x = 720,359,945.66/30,017.36
  6. Step 6: Final answer
    x = 23,998.11

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Double scale
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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.