Home / 38,152.36-52,650.66-21,385

Finding the Fourth Proportional to 38,152.36, 52,650.66 and 21,385

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Solution

The fourth proportional to 38,152.36, 52,650.66 and 21,385 is: 29,511.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,152.36 : 52,650.66 = 21,385 : x
  2. Step 2: Convert to fraction form
    38,152.36/52,650.66 = 21,385/x
  3. Step 3: Cross multiply
    38,152.36x = 52,650.66 × 21,385
  4. Step 4: Simplify right side
    38,152.36x = 1,125,934,364.10
  5. Step 5: Solve for x
    x = 1,125,934,364.10/38,152.36
  6. Step 6: Final answer
    x = 29,511.53

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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.