Home / 21,051.24-31,508.28-15,502.38

Finding the Fourth Proportional to 21,051.24, 31,508.28 and 15,502.38

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Solution

The fourth proportional to 21,051.24, 31,508.28 and 15,502.38 is: 23,203.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.24 : 31,508.28 = 15,502.38 : x
  2. Step 2: Convert to fraction form
    21,051.24/31,508.28 = 15,502.38/x
  3. Step 3: Cross multiply
    21,051.24x = 31,508.28 × 15,502.38
  4. Step 4: Simplify right side
    21,051.24x = 488,453,329.71
  5. Step 5: Solve for x
    x = 488,453,329.71/21,051.24
  6. Step 6: Final answer
    x = 23,203.07

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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.