Home / 27,847.04-38,384.13-21,787.08

Finding the Fourth Proportional to 27,847.04, 38,384.13 and 21,787.08

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Solution

The fourth proportional to 27,847.04, 38,384.13 and 21,787.08 is: 30,031.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.04 : 38,384.13 = 21,787.08 : x
  2. Step 2: Convert to fraction form
    27,847.04/38,384.13 = 21,787.08/x
  3. Step 3: Cross multiply
    27,847.04x = 38,384.13 × 21,787.08
  4. Step 4: Simplify right side
    27,847.04x = 836,277,926.25
  5. Step 5: Solve for x
    x = 836,277,926.25/27,847.04
  6. Step 6: Final answer
    x = 30,031.12

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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.