Home / 27,820.50-38,392.32-15,245.28

Finding the Fourth Proportional to 27,820.50, 38,392.32 and 15,245.28

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Solution

The fourth proportional to 27,820.50, 38,392.32 and 15,245.28 is: 21,038.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,820.50 : 38,392.32 = 15,245.28 : x
  2. Step 2: Convert to fraction form
    27,820.50/38,392.32 = 15,245.28/x
  3. Step 3: Cross multiply
    27,820.50x = 38,392.32 × 15,245.28
  4. Step 4: Simplify right side
    27,820.50x = 585,301,668.25
  5. Step 5: Solve for x
    x = 585,301,668.25/27,820.50
  6. Step 6: Final answer
    x = 21,038.50

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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.