Home / 15,316.16-21,120.72-14,423.22

Finding the Fourth Proportional to 15,316.16, 21,120.72 and 14,423.22

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Solution

The fourth proportional to 15,316.16, 21,120.72 and 14,423.22 is: 19,889.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316.16 : 21,120.72 = 14,423.22 : x
  2. Step 2: Convert to fraction form
    15,316.16/21,120.72 = 14,423.22/x
  3. Step 3: Cross multiply
    15,316.16x = 21,120.72 × 14,423.22
  4. Step 4: Simplify right side
    15,316.16x = 304,628,791.12
  5. Step 5: Solve for x
    x = 304,628,791.12/15,316.16
  6. Step 6: Final answer
    x = 19,889.38

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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.