Home / 21,706.32-29,950.92-13,325.52

Finding the Fourth Proportional to 21,706.32, 29,950.92 and 13,325.52

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Solution

The fourth proportional to 21,706.32, 29,950.92 and 13,325.52 is: 18,386.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,706.32 : 29,950.92 = 13,325.52 : x
  2. Step 2: Convert to fraction form
    21,706.32/29,950.92 = 13,325.52/x
  3. Step 3: Cross multiply
    21,706.32x = 29,950.92 × 13,325.52
  4. Step 4: Simplify right side
    21,706.32x = 399,111,583.48
  5. Step 5: Solve for x
    x = 399,111,583.48/21,706.32
  6. Step 6: Final answer
    x = 18,386.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.