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Finding the Fourth Proportional to 30,301.60, 45,387.60 and 25,117.60

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Solution

The fourth proportional to 30,301.60, 45,387.60 and 25,117.60 is: 37,622.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,301.60 : 45,387.60 = 25,117.60 : x
  2. Step 2: Convert to fraction form
    30,301.60/45,387.60 = 25,117.60/x
  3. Step 3: Cross multiply
    30,301.60x = 45,387.60 × 25,117.60
  4. Step 4: Simplify right side
    30,301.60x = 1,140,027,581.76
  5. Step 5: Solve for x
    x = 1,140,027,581.76/30,301.60
  6. Step 6: Final answer
    x = 37,622.69

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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.