Home / 20,834.30-28,740.60-14,117.64

Finding the Fourth Proportional to 20,834.30, 28,740.60 and 14,117.64

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Solution

The fourth proportional to 20,834.30, 28,740.60 and 14,117.64 is: 19,475.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.30 : 28,740.60 = 14,117.64 : x
  2. Step 2: Convert to fraction form
    20,834.30/28,740.60 = 14,117.64/x
  3. Step 3: Cross multiply
    20,834.30x = 28,740.60 × 14,117.64
  4. Step 4: Simplify right side
    20,834.30x = 405,749,444.18
  5. Step 5: Solve for x
    x = 405,749,444.18/20,834.30
  6. Step 6: Final answer
    x = 19,475.07

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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.