Home / 30,213.60-45,320.40-22,437.60

Finding the Fourth Proportional to 30,213.60, 45,320.40 and 22,437.60

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Solution

The fourth proportional to 30,213.60, 45,320.40 and 22,437.60 is: 33,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,213.60 : 45,320.40 = 22,437.60 : x
  2. Step 2: Convert to fraction form
    30,213.60/45,320.40 = 22,437.60/x
  3. Step 3: Cross multiply
    30,213.60x = 45,320.40 × 22,437.60
  4. Step 4: Simplify right side
    30,213.60x = 1,016,881,007.04
  5. Step 5: Solve for x
    x = 1,016,881,007.04/30,213.60
  6. Step 6: Final answer
    x = 33,656.40

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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.