Home / 20,319.10-30,484.86-9,653.56

Finding the Fourth Proportional to 20,319.10, 30,484.86 and 9,653.56

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Solution

The fourth proportional to 20,319.10, 30,484.86 and 9,653.56 is: 14,483.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,319.10 : 30,484.86 = 9,653.56 : x
  2. Step 2: Convert to fraction form
    20,319.10/30,484.86 = 9,653.56/x
  3. Step 3: Cross multiply
    20,319.10x = 30,484.86 × 9,653.56
  4. Step 4: Simplify right side
    20,319.10x = 294,287,425.10
  5. Step 5: Solve for x
    x = 294,287,425.10/20,319.10
  6. Step 6: Final answer
    x = 14,483.29

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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.