Home / 19,429.27-26,812.16-10,931.36

Finding the Fourth Proportional to 19,429.27, 26,812.16 and 10,931.36

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Solution

The fourth proportional to 19,429.27, 26,812.16 and 10,931.36 is: 15,085.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,429.27 : 26,812.16 = 10,931.36 : x
  2. Step 2: Convert to fraction form
    19,429.27/26,812.16 = 10,931.36/x
  3. Step 3: Cross multiply
    19,429.27x = 26,812.16 × 10,931.36
  4. Step 4: Simplify right side
    19,429.27x = 293,093,287.10
  5. Step 5: Solve for x
    x = 293,093,287.10/19,429.27
  6. Step 6: Final answer
    x = 15,085.14

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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.