Home / 31,450.64-43,401.92-18,875.36

Finding the Fourth Proportional to 31,450.64, 43,401.92 and 18,875.36

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Solution

The fourth proportional to 31,450.64, 43,401.92 and 18,875.36 is: 26,048.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,450.64 : 43,401.92 = 18,875.36 : x
  2. Step 2: Convert to fraction form
    31,450.64/43,401.92 = 18,875.36/x
  3. Step 3: Cross multiply
    31,450.64x = 43,401.92 × 18,875.36
  4. Step 4: Simplify right side
    31,450.64x = 819,226,864.69
  5. Step 5: Solve for x
    x = 819,226,864.69/31,450.64
  6. Step 6: Final answer
    x = 26,048.02

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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.