Home / 30,254.64-45,352.80-20,371.86

Finding the Fourth Proportional to 30,254.64, 45,352.80 and 20,371.86

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Solution

The fourth proportional to 30,254.64, 45,352.80 and 20,371.86 is: 30,538.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,254.64 : 45,352.80 = 20,371.86 : x
  2. Step 2: Convert to fraction form
    30,254.64/45,352.80 = 20,371.86/x
  3. Step 3: Cross multiply
    30,254.64x = 45,352.80 × 20,371.86
  4. Step 4: Simplify right side
    30,254.64x = 923,920,892.21
  5. Step 5: Solve for x
    x = 923,920,892.21/30,254.64
  6. Step 6: Final answer
    x = 30,538.16

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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.