Home / 30,587.12-45,782.21-15,775.66

Finding the Fourth Proportional to 30,587.12, 45,782.21 and 15,775.66

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Solution

The fourth proportional to 30,587.12, 45,782.21 and 15,775.66 is: 23,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,587.12 : 45,782.21 = 15,775.66 : x
  2. Step 2: Convert to fraction form
    30,587.12/45,782.21 = 15,775.66/x
  3. Step 3: Cross multiply
    30,587.12x = 45,782.21 × 15,775.66
  4. Step 4: Simplify right side
    30,587.12x = 722,244,675.68
  5. Step 5: Solve for x
    x = 722,244,675.68/30,587.12
  6. Step 6: Final answer
    x = 23,612.71

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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.