Home / 30,316.72-45,480.64-10,327.92

Finding the Fourth Proportional to 30,316.72, 45,480.64 and 10,327.92

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Solution

The fourth proportional to 30,316.72, 45,480.64 and 10,327.92 is: 15,493.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,316.72 : 45,480.64 = 10,327.92 : x
  2. Step 2: Convert to fraction form
    30,316.72/45,480.64 = 10,327.92/x
  3. Step 3: Cross multiply
    30,316.72x = 45,480.64 × 10,327.92
  4. Step 4: Simplify right side
    30,316.72x = 469,720,411.47
  5. Step 5: Solve for x
    x = 469,720,411.47/30,316.72
  6. Step 6: Final answer
    x = 15,493.77

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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.