Home / 26,443.68-36,478.80-20,145.12

Finding the Fourth Proportional to 26,443.68, 36,478.80 and 20,145.12

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Solution

The fourth proportional to 26,443.68, 36,478.80 and 20,145.12 is: 27,790.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,443.68 : 36,478.80 = 20,145.12 : x
  2. Step 2: Convert to fraction form
    26,443.68/36,478.80 = 20,145.12/x
  3. Step 3: Cross multiply
    26,443.68x = 36,478.80 × 20,145.12
  4. Step 4: Simplify right side
    26,443.68x = 734,869,803.46
  5. Step 5: Solve for x
    x = 734,869,803.46/26,443.68
  6. Step 6: Final answer
    x = 27,790.00

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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.