Home / 30,215.04-45,321.66-17,725.47

Finding the Fourth Proportional to 30,215.04, 45,321.66 and 17,725.47

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Solution

The fourth proportional to 30,215.04, 45,321.66 and 17,725.47 is: 26,587.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,215.04 : 45,321.66 = 17,725.47 : x
  2. Step 2: Convert to fraction form
    30,215.04/45,321.66 = 17,725.47/x
  3. Step 3: Cross multiply
    30,215.04x = 45,321.66 × 17,725.47
  4. Step 4: Simplify right side
    30,215.04x = 803,347,724.68
  5. Step 5: Solve for x
    x = 803,347,724.68/30,215.04
  6. Step 6: Final answer
    x = 26,587.68

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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.