Home / 30,246.74-45,281.40-21,209.52

Finding the Fourth Proportional to 30,246.74, 45,281.40 and 21,209.52

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Solution

The fourth proportional to 30,246.74, 45,281.40 and 21,209.52 is: 31,752.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,246.74 : 45,281.40 = 21,209.52 : x
  2. Step 2: Convert to fraction form
    30,246.74/45,281.40 = 21,209.52/x
  3. Step 3: Cross multiply
    30,246.74x = 45,281.40 × 21,209.52
  4. Step 4: Simplify right side
    30,246.74x = 960,396,849.20
  5. Step 5: Solve for x
    x = 960,396,849.20/30,246.74
  6. Step 6: Final answer
    x = 31,752.08

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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.