Home / 30,247.74-45,282.89-21,210.52

Finding the Fourth Proportional to 30,247.74, 45,282.89 and 21,210.52

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Solution

The fourth proportional to 30,247.74, 45,282.89 and 21,210.52 is: 31,753.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,247.74 : 45,282.89 = 21,210.52 : x
  2. Step 2: Convert to fraction form
    30,247.74/45,282.89 = 21,210.52/x
  3. Step 3: Cross multiply
    30,247.74x = 45,282.89 × 21,210.52
  4. Step 4: Simplify right side
    30,247.74x = 960,473,644.00
  5. Step 5: Solve for x
    x = 960,473,644.00/30,247.74
  6. Step 6: Final answer
    x = 31,753.57

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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.