Home / 28,901.40-43,352.10-8,124.90

Finding the Fourth Proportional to 28,901.40, 43,352.10 and 8,124.90

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Solution

The fourth proportional to 28,901.40, 43,352.10 and 8,124.90 is: 12,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.40 : 43,352.10 = 8,124.90 : x
  2. Step 2: Convert to fraction form
    28,901.40/43,352.10 = 8,124.90/x
  3. Step 3: Cross multiply
    28,901.40x = 43,352.10 × 8,124.90
  4. Step 4: Simplify right side
    28,901.40x = 352,231,477.29
  5. Step 5: Solve for x
    x = 352,231,477.29/28,901.40
  6. Step 6: Final answer
    x = 12,187.35

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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.