Home / 15,024.87-20,755.53-13,678.23

Finding the Fourth Proportional to 15,024.87, 20,755.53 and 13,678.23

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Solution

The fourth proportional to 15,024.87, 20,755.53 and 13,678.23 is: 18,895.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,024.87 : 20,755.53 = 13,678.23 : x
  2. Step 2: Convert to fraction form
    15,024.87/20,755.53 = 13,678.23/x
  3. Step 3: Cross multiply
    15,024.87x = 20,755.53 × 13,678.23
  4. Step 4: Simplify right side
    15,024.87x = 283,898,913.11
  5. Step 5: Solve for x
    x = 283,898,913.11/15,024.87
  6. Step 6: Final answer
    x = 18,895.27

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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.