Home / 40,689.16-56,153.12-22,783.10

Finding the Fourth Proportional to 40,689.16, 56,153.12 and 22,783.10

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Solution

The fourth proportional to 40,689.16, 56,153.12 and 22,783.10 is: 31,441.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,689.16 : 56,153.12 = 22,783.10 : x
  2. Step 2: Convert to fraction form
    40,689.16/56,153.12 = 22,783.10/x
  3. Step 3: Cross multiply
    40,689.16x = 56,153.12 × 22,783.10
  4. Step 4: Simplify right side
    40,689.16x = 1,279,341,753.59
  5. Step 5: Solve for x
    x = 1,279,341,753.59/40,689.16
  6. Step 6: Final answer
    x = 31,441.83

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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.