Home / 26,479.79-36,555.02-20,796.32

Finding the Fourth Proportional to 26,479.79, 36,555.02 and 20,796.32

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Solution

The fourth proportional to 26,479.79, 36,555.02 and 20,796.32 is: 28,709.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,479.79 : 36,555.02 = 20,796.32 : x
  2. Step 2: Convert to fraction form
    26,479.79/36,555.02 = 20,796.32/x
  3. Step 3: Cross multiply
    26,479.79x = 36,555.02 × 20,796.32
  4. Step 4: Simplify right side
    26,479.79x = 760,209,914.60
  5. Step 5: Solve for x
    x = 760,209,914.60/26,479.79
  6. Step 6: Final answer
    x = 28,709.07

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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.