Home / 28,340.64-39,114.36-16,411.77

Finding the Fourth Proportional to 28,340.64, 39,114.36 and 16,411.77

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Solution

The fourth proportional to 28,340.64, 39,114.36 and 16,411.77 is: 22,650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,340.64 : 39,114.36 = 16,411.77 : x
  2. Step 2: Convert to fraction form
    28,340.64/39,114.36 = 16,411.77/x
  3. Step 3: Cross multiply
    28,340.64x = 39,114.36 × 16,411.77
  4. Step 4: Simplify right side
    28,340.64x = 641,935,880.02
  5. Step 5: Solve for x
    x = 641,935,880.02/28,340.64
  6. Step 6: Final answer
    x = 22,650.72

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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.