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Finding the Fourth Proportional to 35,430, 48,893.40 and 19,514.40

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Solution

The fourth proportional to 35,430, 48,893.40 and 19,514.40 is: 26,929.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,430 : 48,893.40 = 19,514.40 : x
  2. Step 2: Convert to fraction form
    35,430/48,893.40 = 19,514.40/x
  3. Step 3: Cross multiply
    35,430x = 48,893.40 × 19,514.40
  4. Step 4: Simplify right side
    35,430x = 954,125,364.96
  5. Step 5: Solve for x
    x = 954,125,364.96/35,430
  6. Step 6: Final answer
    x = 26,929.87

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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.