Home / 40,688.91-56,113.23-27,919.57

Finding the Fourth Proportional to 40,688.91, 56,113.23 and 27,919.57

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Solution

The fourth proportional to 40,688.91, 56,113.23 and 27,919.57 is: 38,503.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,688.91 : 56,113.23 = 27,919.57 : x
  2. Step 2: Convert to fraction form
    40,688.91/56,113.23 = 27,919.57/x
  3. Step 3: Cross multiply
    40,688.91x = 56,113.23 × 27,919.57
  4. Step 4: Simplify right side
    40,688.91x = 1,566,657,112.63
  5. Step 5: Solve for x
    x = 1,566,657,112.63/40,688.91
  6. Step 6: Final answer
    x = 38,503.29

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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.