Home / 26,741.76-40,138.56-12,900.48

Finding the Fourth Proportional to 26,741.76, 40,138.56 and 12,900.48

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Solution

The fourth proportional to 26,741.76, 40,138.56 and 12,900.48 is: 19,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,741.76 : 40,138.56 = 12,900.48 : x
  2. Step 2: Convert to fraction form
    26,741.76/40,138.56 = 12,900.48/x
  3. Step 3: Cross multiply
    26,741.76x = 40,138.56 × 12,900.48
  4. Step 4: Simplify right side
    26,741.76x = 517,806,690.51
  5. Step 5: Solve for x
    x = 517,806,690.51/26,741.76
  6. Step 6: Final answer
    x = 19,363.22

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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.