Home / 28,059.15-42,099.66-12,465.84

Finding the Fourth Proportional to 28,059.15, 42,099.66 and 12,465.84

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Solution

The fourth proportional to 28,059.15, 42,099.66 and 12,465.84 is: 18,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,059.15 : 42,099.66 = 12,465.84 : x
  2. Step 2: Convert to fraction form
    28,059.15/42,099.66 = 12,465.84/x
  3. Step 3: Cross multiply
    28,059.15x = 42,099.66 × 12,465.84
  4. Step 4: Simplify right side
    28,059.15x = 524,807,625.61
  5. Step 5: Solve for x
    x = 524,807,625.61/28,059.15
  6. Step 6: Final answer
    x = 18,703.62

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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.