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Finding the Fourth Proportional to 30,364.65, 45,541.80 and 8,173.08

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Solution

The fourth proportional to 30,364.65, 45,541.80 and 8,173.08 is: 12,258.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,364.65 : 45,541.80 = 8,173.08 : x
  2. Step 2: Convert to fraction form
    30,364.65/45,541.80 = 8,173.08/x
  3. Step 3: Cross multiply
    30,364.65x = 45,541.80 × 8,173.08
  4. Step 4: Simplify right side
    30,364.65x = 372,216,774.74
  5. Step 5: Solve for x
    x = 372,216,774.74/30,364.65
  6. Step 6: Final answer
    x = 12,258.23

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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.