Home / 26,539.84-36,630.87-20,785.84

Finding the Fourth Proportional to 26,539.84, 36,630.87 and 20,785.84

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Solution

The fourth proportional to 26,539.84, 36,630.87 and 20,785.84 is: 28,689.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,539.84 : 36,630.87 = 20,785.84 : x
  2. Step 2: Convert to fraction form
    26,539.84/36,630.87 = 20,785.84/x
  3. Step 3: Cross multiply
    26,539.84x = 36,630.87 × 20,785.84
  4. Step 4: Simplify right side
    26,539.84x = 761,403,402.88
  5. Step 5: Solve for x
    x = 761,403,402.88/26,539.84
  6. Step 6: Final answer
    x = 28,689.07

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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.