Home / 30,157.90-45,202.98-14,155.29

Finding the Fourth Proportional to 30,157.90, 45,202.98 and 14,155.29

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Solution

The fourth proportional to 30,157.90, 45,202.98 and 14,155.29 is: 21,217.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,157.90 : 45,202.98 = 14,155.29 : x
  2. Step 2: Convert to fraction form
    30,157.90/45,202.98 = 14,155.29/x
  3. Step 3: Cross multiply
    30,157.90x = 45,202.98 × 14,155.29
  4. Step 4: Simplify right side
    30,157.90x = 639,861,290.76
  5. Step 5: Solve for x
    x = 639,861,290.76/30,157.90
  6. Step 6: Final answer
    x = 21,217.04

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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.