Home / 19,580.86-29,342.13-10,818.28

Finding the Fourth Proportional to 19,580.86, 29,342.13 and 10,818.28

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Solution

The fourth proportional to 19,580.86, 29,342.13 and 10,818.28 is: 16,211.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,580.86 : 29,342.13 = 10,818.28 : x
  2. Step 2: Convert to fraction form
    19,580.86/29,342.13 = 10,818.28/x
  3. Step 3: Cross multiply
    19,580.86x = 29,342.13 × 10,818.28
  4. Step 4: Simplify right side
    19,580.86x = 317,431,378.14
  5. Step 5: Solve for x
    x = 317,431,378.14/19,580.86
  6. Step 6: Final answer
    x = 16,211.31

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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.