Home / 34,385.20-51,547.80-13,339.60

Finding the Fourth Proportional to 34,385.20, 51,547.80 and 13,339.60

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Solution

The fourth proportional to 34,385.20, 51,547.80 and 13,339.60 is: 19,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,385.20 : 51,547.80 = 13,339.60 : x
  2. Step 2: Convert to fraction form
    34,385.20/51,547.80 = 13,339.60/x
  3. Step 3: Cross multiply
    34,385.20x = 51,547.80 × 13,339.60
  4. Step 4: Simplify right side
    34,385.20x = 687,627,032.88
  5. Step 5: Solve for x
    x = 687,627,032.88/34,385.20
  6. Step 6: Final answer
    x = 19,997.76

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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.