Home / 30,185.34-45,272.03-15,188.46

Finding the Fourth Proportional to 30,185.34, 45,272.03 and 15,188.46

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Solution

The fourth proportional to 30,185.34, 45,272.03 and 15,188.46 is: 22,779.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,185.34 : 45,272.03 = 15,188.46 : x
  2. Step 2: Convert to fraction form
    30,185.34/45,272.03 = 15,188.46/x
  3. Step 3: Cross multiply
    30,185.34x = 45,272.03 × 15,188.46
  4. Step 4: Simplify right side
    30,185.34x = 687,612,340.83
  5. Step 5: Solve for x
    x = 687,612,340.83/30,185.34
  6. Step 6: Final answer
    x = 22,779.68

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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.