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Finding the Fourth Proportional to 27,898.91, 38,501.00 and 15,152.09

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Solution

The fourth proportional to 27,898.91, 38,501.00 and 15,152.09 is: 20,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,898.91 : 38,501.00 = 15,152.09 : x
  2. Step 2: Convert to fraction form
    27,898.91/38,501.00 = 15,152.09/x
  3. Step 3: Cross multiply
    27,898.91x = 38,501.00 × 15,152.09
  4. Step 4: Simplify right side
    27,898.91x = 583,370,348.82
  5. Step 5: Solve for x
    x = 583,370,348.82/27,898.91
  6. Step 6: Final answer
    x = 20,910.15

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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.