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Finding the Fourth Proportional to 30,547.56, 45,821.34 and 8,360.04

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Solution

The fourth proportional to 30,547.56, 45,821.34 and 8,360.04 is: 12,540.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,547.56 : 45,821.34 = 8,360.04 : x
  2. Step 2: Convert to fraction form
    30,547.56/45,821.34 = 8,360.04/x
  3. Step 3: Cross multiply
    30,547.56x = 45,821.34 × 8,360.04
  4. Step 4: Simplify right side
    30,547.56x = 383,068,235.25
  5. Step 5: Solve for x
    x = 383,068,235.25/30,547.56
  6. Step 6: Final answer
    x = 12,540.06

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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.