Home / 30,655.22-42,304.34-17,909.12

Finding the Fourth Proportional to 30,655.22, 42,304.34 and 17,909.12

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Solution

The fourth proportional to 30,655.22, 42,304.34 and 17,909.12 is: 24,714.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,655.22 : 42,304.34 = 17,909.12 : x
  2. Step 2: Convert to fraction form
    30,655.22/42,304.34 = 17,909.12/x
  3. Step 3: Cross multiply
    30,655.22x = 42,304.34 × 17,909.12
  4. Step 4: Simplify right side
    30,655.22x = 757,633,652.11
  5. Step 5: Solve for x
    x = 757,633,652.11/30,655.22
  6. Step 6: Final answer
    x = 24,714.67

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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.