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Finding the Fourth Proportional to 30,068.40, 45,089.84 and 15,065.60

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Solution

The fourth proportional to 30,068.40, 45,089.84 and 15,065.60 is: 22,592.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,068.40 : 45,089.84 = 15,065.60 : x
  2. Step 2: Convert to fraction form
    30,068.40/45,089.84 = 15,065.60/x
  3. Step 3: Cross multiply
    30,068.40x = 45,089.84 × 15,065.60
  4. Step 4: Simplify right side
    30,068.40x = 679,305,493.50
  5. Step 5: Solve for x
    x = 679,305,493.50/30,068.40
  6. Step 6: Final answer
    x = 22,592.01

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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.