Home / 30,171.21-45,242.20-17,695.32

Finding the Fourth Proportional to 30,171.21, 45,242.20 and 17,695.32

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Solution

The fourth proportional to 30,171.21, 45,242.20 and 17,695.32 is: 26,534.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,171.21 : 45,242.20 = 17,695.32 : x
  2. Step 2: Convert to fraction form
    30,171.21/45,242.20 = 17,695.32/x
  3. Step 3: Cross multiply
    30,171.21x = 45,242.20 × 17,695.32
  4. Step 4: Simplify right side
    30,171.21x = 800,575,206.50
  5. Step 5: Solve for x
    x = 800,575,206.50/30,171.21
  6. Step 6: Final answer
    x = 26,534.41

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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.