Home / 15,317.16-21,122.10-14,424.22

Finding the Fourth Proportional to 15,317.16, 21,122.10 and 14,424.22

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Solution

The fourth proportional to 15,317.16, 21,122.10 and 14,424.22 is: 19,890.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317.16 : 21,122.10 = 14,424.22 : x
  2. Step 2: Convert to fraction form
    15,317.16/21,122.10 = 14,424.22/x
  3. Step 3: Cross multiply
    15,317.16x = 21,122.10 × 14,424.22
  4. Step 4: Simplify right side
    15,317.16x = 304,669,817.26
  5. Step 5: Solve for x
    x = 304,669,817.26/15,317.16
  6. Step 6: Final answer
    x = 19,890.75

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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.