Home / 20,484.88-28,265.40-12,925.96

Finding the Fourth Proportional to 20,484.88, 28,265.40 and 12,925.96

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Solution

The fourth proportional to 20,484.88, 28,265.40 and 12,925.96 is: 17,835.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.88 : 28,265.40 = 12,925.96 : x
  2. Step 2: Convert to fraction form
    20,484.88/28,265.40 = 12,925.96/x
  3. Step 3: Cross multiply
    20,484.88x = 28,265.40 × 12,925.96
  4. Step 4: Simplify right side
    20,484.88x = 365,357,429.78
  5. Step 5: Solve for x
    x = 365,357,429.78/20,484.88
  6. Step 6: Final answer
    x = 17,835.47

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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.