Home / 19,881.86-27,436.64-10,929.17

Finding the Fourth Proportional to 19,881.86, 27,436.64 and 10,929.17

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Solution

The fourth proportional to 19,881.86, 27,436.64 and 10,929.17 is: 15,082.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.86 : 27,436.64 = 10,929.17 : x
  2. Step 2: Convert to fraction form
    19,881.86/27,436.64 = 10,929.17/x
  3. Step 3: Cross multiply
    19,881.86x = 27,436.64 × 10,929.17
  4. Step 4: Simplify right side
    19,881.86x = 299,859,702.79
  5. Step 5: Solve for x
    x = 299,859,702.79/19,881.86
  6. Step 6: Final answer
    x = 15,082.07

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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.