Home / 28,070.46-42,099.93-10,539.90

Finding the Fourth Proportional to 28,070.46, 42,099.93 and 10,539.90

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Solution

The fourth proportional to 28,070.46, 42,099.93 and 10,539.90 is: 15,807.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.46 : 42,099.93 = 10,539.90 : x
  2. Step 2: Convert to fraction form
    28,070.46/42,099.93 = 10,539.90/x
  3. Step 3: Cross multiply
    28,070.46x = 42,099.93 × 10,539.90
  4. Step 4: Simplify right side
    28,070.46x = 443,729,052.21
  5. Step 5: Solve for x
    x = 443,729,052.21/28,070.46
  6. Step 6: Final answer
    x = 15,807.69

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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.