Home / 15,325.50-21,151.64-14,324.94

Finding the Fourth Proportional to 15,325.50, 21,151.64 and 14,324.94

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Solution

The fourth proportional to 15,325.50, 21,151.64 and 14,324.94 is: 19,770.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325.50 : 21,151.64 = 14,324.94 : x
  2. Step 2: Convert to fraction form
    15,325.50/21,151.64 = 14,324.94/x
  3. Step 3: Cross multiply
    15,325.50x = 21,151.64 × 14,324.94
  4. Step 4: Simplify right side
    15,325.50x = 302,995,973.90
  5. Step 5: Solve for x
    x = 302,995,973.90/15,325.50
  6. Step 6: Final answer
    x = 19,770.71

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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.