Home / 25,946.64-38,913.48-8,421.48

Finding the Fourth Proportional to 25,946.64, 38,913.48 and 8,421.48

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Solution

The fourth proportional to 25,946.64, 38,913.48 and 8,421.48 is: 12,630.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,946.64 : 38,913.48 = 8,421.48 : x
  2. Step 2: Convert to fraction form
    25,946.64/38,913.48 = 8,421.48/x
  3. Step 3: Cross multiply
    25,946.64x = 38,913.48 × 8,421.48
  4. Step 4: Simplify right side
    25,946.64x = 327,709,093.55
  5. Step 5: Solve for x
    x = 327,709,093.55/25,946.64
  6. Step 6: Final answer
    x = 12,630.12

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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.