Home / 38,490.22-53,113.47-21,493.14

Finding the Fourth Proportional to 38,490.22, 53,113.47 and 21,493.14

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Solution

The fourth proportional to 38,490.22, 53,113.47 and 21,493.14 is: 29,658.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,490.22 : 53,113.47 = 21,493.14 : x
  2. Step 2: Convert to fraction form
    38,490.22/53,113.47 = 21,493.14/x
  3. Step 3: Cross multiply
    38,490.22x = 53,113.47 × 21,493.14
  4. Step 4: Simplify right side
    38,490.22x = 1,141,575,246.60
  5. Step 5: Solve for x
    x = 1,141,575,246.60/38,490.22
  6. Step 6: Final answer
    x = 29,658.84

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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.