Home / 20,050.88-30,020.48-13,038.72

Finding the Fourth Proportional to 20,050.88, 30,020.48 and 13,038.72

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Solution

The fourth proportional to 20,050.88, 30,020.48 and 13,038.72 is: 19,521.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,050.88 : 30,020.48 = 13,038.72 : x
  2. Step 2: Convert to fraction form
    20,050.88/30,020.48 = 13,038.72/x
  3. Step 3: Cross multiply
    20,050.88x = 30,020.48 × 13,038.72
  4. Step 4: Simplify right side
    20,050.88x = 391,428,632.99
  5. Step 5: Solve for x
    x = 391,428,632.99/20,050.88
  6. Step 6: Final answer
    x = 19,521.77

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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.