Home / 18,929.39-26,123.69-10,431.48

Finding the Fourth Proportional to 18,929.39, 26,123.69 and 10,431.48

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Solution

The fourth proportional to 18,929.39, 26,123.69 and 10,431.48 is: 14,396.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.39 : 26,123.69 = 10,431.48 : x
  2. Step 2: Convert to fraction form
    18,929.39/26,123.69 = 10,431.48/x
  3. Step 3: Cross multiply
    18,929.39x = 26,123.69 × 10,431.48
  4. Step 4: Simplify right side
    18,929.39x = 272,508,873.80
  5. Step 5: Solve for x
    x = 272,508,873.80/18,929.39
  6. Step 6: Final answer
    x = 14,396.08

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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.