Home / 26,835.80-40,228.10-20,909.40

Finding the Fourth Proportional to 26,835.80, 40,228.10 and 20,909.40

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Solution

The fourth proportional to 26,835.80, 40,228.10 and 20,909.40 is: 31,344.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,835.80 : 40,228.10 = 20,909.40 : x
  2. Step 2: Convert to fraction form
    26,835.80/40,228.10 = 20,909.40/x
  3. Step 3: Cross multiply
    26,835.80x = 40,228.10 × 20,909.40
  4. Step 4: Simplify right side
    26,835.80x = 841,145,434.14
  5. Step 5: Solve for x
    x = 841,145,434.14/26,835.80
  6. Step 6: Final answer
    x = 31,344.15

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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.