Home / 20,558.40-30,837.60-14,337.60

Finding the Fourth Proportional to 20,558.40, 30,837.60 and 14,337.60

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Solution

The fourth proportional to 20,558.40, 30,837.60 and 14,337.60 is: 21,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.40 : 30,837.60 = 14,337.60 : x
  2. Step 2: Convert to fraction form
    20,558.40/30,837.60 = 14,337.60/x
  3. Step 3: Cross multiply
    20,558.40x = 30,837.60 × 14,337.60
  4. Step 4: Simplify right side
    20,558.40x = 442,137,173.76
  5. Step 5: Solve for x
    x = 442,137,173.76/20,558.40
  6. Step 6: Final answer
    x = 21,506.40

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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.