Home / 20,682.24-31,038.40-15,502.08

Finding the Fourth Proportional to 20,682.24, 31,038.40 and 15,502.08

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Solution

The fourth proportional to 20,682.24, 31,038.40 and 15,502.08 is: 23,264.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682.24 : 31,038.40 = 15,502.08 : x
  2. Step 2: Convert to fraction form
    20,682.24/31,038.40 = 15,502.08/x
  3. Step 3: Cross multiply
    20,682.24x = 31,038.40 × 15,502.08
  4. Step 4: Simplify right side
    20,682.24x = 481,159,759.87
  5. Step 5: Solve for x
    x = 481,159,759.87/20,682.24
  6. Step 6: Final answer
    x = 23,264.39

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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.