Home / 19,880.92-27,434.28-10,929.01

Finding the Fourth Proportional to 19,880.92, 27,434.28 and 10,929.01

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Solution

The fourth proportional to 19,880.92, 27,434.28 and 10,929.01 is: 15,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880.92 : 27,434.28 = 10,929.01 : x
  2. Step 2: Convert to fraction form
    19,880.92/27,434.28 = 10,929.01/x
  3. Step 3: Cross multiply
    19,880.92x = 27,434.28 × 10,929.01
  4. Step 4: Simplify right side
    19,880.92x = 299,829,520.46
  5. Step 5: Solve for x
    x = 299,829,520.46/19,880.92
  6. Step 6: Final answer
    x = 15,081.27

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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.