Home / 27,730.38-38,274.72-15,800.76

Finding the Fourth Proportional to 27,730.38, 38,274.72 and 15,800.76

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Solution

The fourth proportional to 27,730.38, 38,274.72 and 15,800.76 is: 21,808.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,730.38 : 38,274.72 = 15,800.76 : x
  2. Step 2: Convert to fraction form
    27,730.38/38,274.72 = 15,800.76/x
  3. Step 3: Cross multiply
    27,730.38x = 38,274.72 × 15,800.76
  4. Step 4: Simplify right side
    27,730.38x = 604,769,664.79
  5. Step 5: Solve for x
    x = 604,769,664.79/27,730.38
  6. Step 6: Final answer
    x = 21,808.92

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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.