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Finding the Fourth Proportional to 30,599.56, 42,238.02 and 18,023.50

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Solution

The fourth proportional to 30,599.56, 42,238.02 and 18,023.50 is: 24,878.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,599.56 : 42,238.02 = 18,023.50 : x
  2. Step 2: Convert to fraction form
    30,599.56/42,238.02 = 18,023.50/x
  3. Step 3: Cross multiply
    30,599.56x = 42,238.02 × 18,023.50
  4. Step 4: Simplify right side
    30,599.56x = 761,276,953.47
  5. Step 5: Solve for x
    x = 761,276,953.47/30,599.56
  6. Step 6: Final answer
    x = 24,878.69

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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.