Home / 30,059.12-45,082.51-18,987.44

Finding the Fourth Proportional to 30,059.12, 45,082.51 and 18,987.44

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Solution

The fourth proportional to 30,059.12, 45,082.51 and 18,987.44 is: 28,477.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,059.12 : 45,082.51 = 18,987.44 : x
  2. Step 2: Convert to fraction form
    30,059.12/45,082.51 = 18,987.44/x
  3. Step 3: Cross multiply
    30,059.12x = 45,082.51 × 18,987.44
  4. Step 4: Simplify right side
    30,059.12x = 856,001,180.79
  5. Step 5: Solve for x
    x = 856,001,180.79/30,059.12
  6. Step 6: Final answer
    x = 28,477.25

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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.