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Finding the Fourth Proportional to 29,998.76, 45,011.10 and 16,831.40

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Solution

The fourth proportional to 29,998.76, 45,011.10 and 16,831.40 is: 25,254.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,998.76 : 45,011.10 = 16,831.40 : x
  2. Step 2: Convert to fraction form
    29,998.76/45,011.10 = 16,831.40/x
  3. Step 3: Cross multiply
    29,998.76x = 45,011.10 × 16,831.40
  4. Step 4: Simplify right side
    29,998.76x = 757,599,828.54
  5. Step 5: Solve for x
    x = 757,599,828.54/29,998.76
  6. Step 6: Final answer
    x = 25,254.37

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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.