Home / 38,641.98-53,330.36-21,650.82

Finding the Fourth Proportional to 38,641.98, 53,330.36 and 21,650.82

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Solution

The fourth proportional to 38,641.98, 53,330.36 and 21,650.82 is: 29,880.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,641.98 : 53,330.36 = 21,650.82 : x
  2. Step 2: Convert to fraction form
    38,641.98/53,330.36 = 21,650.82/x
  3. Step 3: Cross multiply
    38,641.98x = 53,330.36 × 21,650.82
  4. Step 4: Simplify right side
    38,641.98x = 1,154,646,024.90
  5. Step 5: Solve for x
    x = 1,154,646,024.90/38,641.98
  6. Step 6: Final answer
    x = 29,880.61

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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.