Home / 19,428.19-26,812.46-10,929.81

Finding the Fourth Proportional to 19,428.19, 26,812.46 and 10,929.81

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Solution

The fourth proportional to 19,428.19, 26,812.46 and 10,929.81 is: 15,084.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.19 : 26,812.46 = 10,929.81 : x
  2. Step 2: Convert to fraction form
    19,428.19/26,812.46 = 10,929.81/x
  3. Step 3: Cross multiply
    19,428.19x = 26,812.46 × 10,929.81
  4. Step 4: Simplify right side
    19,428.19x = 293,055,093.43
  5. Step 5: Solve for x
    x = 293,055,093.43/19,428.19
  6. Step 6: Final answer
    x = 15,084.01

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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.