Home / 27,620.79-38,116.76-15,045.27

Finding the Fourth Proportional to 27,620.79, 38,116.76 and 15,045.27

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Solution

The fourth proportional to 27,620.79, 38,116.76 and 15,045.27 is: 20,762.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.79 : 38,116.76 = 15,045.27 : x
  2. Step 2: Convert to fraction form
    27,620.79/38,116.76 = 15,045.27/x
  3. Step 3: Cross multiply
    27,620.79x = 38,116.76 × 15,045.27
  4. Step 4: Simplify right side
    27,620.79x = 573,476,870.50
  5. Step 5: Solve for x
    x = 573,476,870.50/27,620.79
  6. Step 6: Final answer
    x = 20,762.51

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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.