Home / 30,391.88-45,556.21-12,632.20

Finding the Fourth Proportional to 30,391.88, 45,556.21 and 12,632.20

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Solution

The fourth proportional to 30,391.88, 45,556.21 and 12,632.20 is: 18,935.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391.88 : 45,556.21 = 12,632.20 : x
  2. Step 2: Convert to fraction form
    30,391.88/45,556.21 = 12,632.20/x
  3. Step 3: Cross multiply
    30,391.88x = 45,556.21 × 12,632.20
  4. Step 4: Simplify right side
    30,391.88x = 575,475,256.38
  5. Step 5: Solve for x
    x = 575,475,256.38/30,391.88
  6. Step 6: Final answer
    x = 18,935.17

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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.