Home / 20,923.02-28,873.79-11,492.22

Finding the Fourth Proportional to 20,923.02, 28,873.79 and 11,492.22

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Solution

The fourth proportional to 20,923.02, 28,873.79 and 11,492.22 is: 15,859.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.02 : 28,873.79 = 11,492.22 : x
  2. Step 2: Convert to fraction form
    20,923.02/28,873.79 = 11,492.22/x
  3. Step 3: Cross multiply
    20,923.02x = 28,873.79 × 11,492.22
  4. Step 4: Simplify right side
    20,923.02x = 331,823,946.91
  5. Step 5: Solve for x
    x = 331,823,946.91/20,923.02
  6. Step 6: Final answer
    x = 15,859.28

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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.