Home / 30,317.55-45,478.01-9,260.79

Finding the Fourth Proportional to 30,317.55, 45,478.01 and 9,260.79

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Solution

The fourth proportional to 30,317.55, 45,478.01 and 9,260.79 is: 13,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,317.55 : 45,478.01 = 9,260.79 : x
  2. Step 2: Convert to fraction form
    30,317.55/45,478.01 = 9,260.79/x
  3. Step 3: Cross multiply
    30,317.55x = 45,478.01 × 9,260.79
  4. Step 4: Simplify right side
    30,317.55x = 421,162,300.23
  5. Step 5: Solve for x
    x = 421,162,300.23/30,317.55
  6. Step 6: Final answer
    x = 13,891.70

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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.