Home / 30,332.40-45,507.48-8,985.68

Finding the Fourth Proportional to 30,332.40, 45,507.48 and 8,985.68

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Solution

The fourth proportional to 30,332.40, 45,507.48 and 8,985.68 is: 13,481.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,332.40 : 45,507.48 = 8,985.68 : x
  2. Step 2: Convert to fraction form
    30,332.40/45,507.48 = 8,985.68/x
  3. Step 3: Cross multiply
    30,332.40x = 45,507.48 × 8,985.68
  4. Step 4: Simplify right side
    30,332.40x = 408,915,652.89
  5. Step 5: Solve for x
    x = 408,915,652.89/30,332.40
  6. Step 6: Final answer
    x = 13,481.15

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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.