Home / 27,820.19-41,730.26-18,478.45

Finding the Fourth Proportional to 27,820.19, 41,730.26 and 18,478.45

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Solution

The fourth proportional to 27,820.19, 41,730.26 and 18,478.45 is: 27,717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,820.19 : 41,730.26 = 18,478.45 : x
  2. Step 2: Convert to fraction form
    27,820.19/41,730.26 = 18,478.45/x
  3. Step 3: Cross multiply
    27,820.19x = 41,730.26 × 18,478.45
  4. Step 4: Simplify right side
    27,820.19x = 771,110,247.93
  5. Step 5: Solve for x
    x = 771,110,247.93/27,820.19
  6. Step 6: Final answer
    x = 27,717.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.