Home / 30,246.75-45,411.84-20,864.52

Finding the Fourth Proportional to 30,246.75, 45,411.84 and 20,864.52

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Solution

The fourth proportional to 30,246.75, 45,411.84 and 20,864.52 is: 31,325.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,246.75 : 45,411.84 = 20,864.52 : x
  2. Step 2: Convert to fraction form
    30,246.75/45,411.84 = 20,864.52/x
  3. Step 3: Cross multiply
    30,246.75x = 45,411.84 × 20,864.52
  4. Step 4: Simplify right side
    30,246.75x = 947,496,243.92
  5. Step 5: Solve for x
    x = 947,496,243.92/30,246.75
  6. Step 6: Final answer
    x = 31,325.56

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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.