Home / 38,005.40-57,008.10-21,416.60

Finding the Fourth Proportional to 38,005.40, 57,008.10 and 21,416.60

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Solution

The fourth proportional to 38,005.40, 57,008.10 and 21,416.60 is: 32,124.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,005.40 : 57,008.10 = 21,416.60 : x
  2. Step 2: Convert to fraction form
    38,005.40/57,008.10 = 21,416.60/x
  3. Step 3: Cross multiply
    38,005.40x = 57,008.10 × 21,416.60
  4. Step 4: Simplify right side
    38,005.40x = 1,220,919,674.46
  5. Step 5: Solve for x
    x = 1,220,919,674.46/38,005.40
  6. Step 6: Final answer
    x = 32,124.90

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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.