Home / 22,430.76-30,954.44-13,004.78

Finding the Fourth Proportional to 22,430.76, 30,954.44 and 13,004.78

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Solution

The fourth proportional to 22,430.76, 30,954.44 and 13,004.78 is: 17,946.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,430.76 : 30,954.44 = 13,004.78 : x
  2. Step 2: Convert to fraction form
    22,430.76/30,954.44 = 13,004.78/x
  3. Step 3: Cross multiply
    22,430.76x = 30,954.44 × 13,004.78
  4. Step 4: Simplify right side
    22,430.76x = 402,555,682.22
  5. Step 5: Solve for x
    x = 402,555,682.22/22,430.76
  6. Step 6: Final answer
    x = 17,946.59

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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.