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Finding the Fourth Proportional to 30,625.58, 42,200.10 and 23,455.10

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Solution

The fourth proportional to 30,625.58, 42,200.10 and 23,455.10 is: 32,319.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,625.58 : 42,200.10 = 23,455.10 : x
  2. Step 2: Convert to fraction form
    30,625.58/42,200.10 = 23,455.10/x
  3. Step 3: Cross multiply
    30,625.58x = 42,200.10 × 23,455.10
  4. Step 4: Simplify right side
    30,625.58x = 989,807,565.51
  5. Step 5: Solve for x
    x = 989,807,565.51/30,625.58
  6. Step 6: Final answer
    x = 32,319.63

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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.