Home / 30,003.56-41,406.64-18,070.76

Finding the Fourth Proportional to 30,003.56, 41,406.64 and 18,070.76

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Solution

The fourth proportional to 30,003.56, 41,406.64 and 18,070.76 is: 24,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,003.56 : 41,406.64 = 18,070.76 : x
  2. Step 2: Convert to fraction form
    30,003.56/41,406.64 = 18,070.76/x
  3. Step 3: Cross multiply
    30,003.56x = 41,406.64 × 18,070.76
  4. Step 4: Simplify right side
    30,003.56x = 748,249,453.85
  5. Step 5: Solve for x
    x = 748,249,453.85/30,003.56
  6. Step 6: Final answer
    x = 24,938.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.