Home / 30,005.60-45,008.40-22,229.60

Finding the Fourth Proportional to 30,005.60, 45,008.40 and 22,229.60

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Solution

The fourth proportional to 30,005.60, 45,008.40 and 22,229.60 is: 33,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.60 : 45,008.40 = 22,229.60 : x
  2. Step 2: Convert to fraction form
    30,005.60/45,008.40 = 22,229.60/x
  3. Step 3: Cross multiply
    30,005.60x = 45,008.40 × 22,229.60
  4. Step 4: Simplify right side
    30,005.60x = 1,000,518,728.64
  5. Step 5: Solve for x
    x = 1,000,518,728.64/30,005.60
  6. Step 6: Final answer
    x = 33,344.40

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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.