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Finding the Fourth Proportional to 36,835.61, 50,833.50 and 20,920.40

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Solution

The fourth proportional to 36,835.61, 50,833.50 and 20,920.40 is: 28,870.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,835.61 : 50,833.50 = 20,920.40 : x
  2. Step 2: Convert to fraction form
    36,835.61/50,833.50 = 20,920.40/x
  3. Step 3: Cross multiply
    36,835.61x = 50,833.50 × 20,920.40
  4. Step 4: Simplify right side
    36,835.61x = 1,063,457,153.40
  5. Step 5: Solve for x
    x = 1,063,457,153.40/36,835.61
  6. Step 6: Final answer
    x = 28,870.36

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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.