Home / 28,645.02-42,950.26-12,847.20

Finding the Fourth Proportional to 28,645.02, 42,950.26 and 12,847.20

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Solution

The fourth proportional to 28,645.02, 42,950.26 and 12,847.20 is: 19,263.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,645.02 : 42,950.26 = 12,847.20 : x
  2. Step 2: Convert to fraction form
    28,645.02/42,950.26 = 12,847.20/x
  3. Step 3: Cross multiply
    28,645.02x = 42,950.26 × 12,847.20
  4. Step 4: Simplify right side
    28,645.02x = 551,790,580.27
  5. Step 5: Solve for x
    x = 551,790,580.27/28,645.02
  6. Step 6: Final answer
    x = 19,263.05

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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.