Home / 15,689.21-23,395.42-13,511.93

Finding the Fourth Proportional to 15,689.21, 23,395.42 and 13,511.93

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Solution

The fourth proportional to 15,689.21, 23,395.42 and 13,511.93 is: 20,148.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,689.21 : 23,395.42 = 13,511.93 : x
  2. Step 2: Convert to fraction form
    15,689.21/23,395.42 = 13,511.93/x
  3. Step 3: Cross multiply
    15,689.21x = 23,395.42 × 13,511.93
  4. Step 4: Simplify right side
    15,689.21x = 316,117,277.36
  5. Step 5: Solve for x
    x = 316,117,277.36/15,689.21
  6. Step 6: Final answer
    x = 20,148.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.