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Finding the Fourth Proportional to 30,506.58, 42,099.84 and 17,080.08

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Solution

The fourth proportional to 30,506.58, 42,099.84 and 17,080.08 is: 23,570.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,506.58 : 42,099.84 = 17,080.08 : x
  2. Step 2: Convert to fraction form
    30,506.58/42,099.84 = 17,080.08/x
  3. Step 3: Cross multiply
    30,506.58x = 42,099.84 × 17,080.08
  4. Step 4: Simplify right side
    30,506.58x = 719,068,635.19
  5. Step 5: Solve for x
    x = 719,068,635.19/30,506.58
  6. Step 6: Final answer
    x = 23,570.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.