Home / 38,320.45-57,459.84-13,353.80

Finding the Fourth Proportional to 38,320.45, 57,459.84 and 13,353.80

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Solution

The fourth proportional to 38,320.45, 57,459.84 and 13,353.80 is: 20,023.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,320.45 : 57,459.84 = 13,353.80 : x
  2. Step 2: Convert to fraction form
    38,320.45/57,459.84 = 13,353.80/x
  3. Step 3: Cross multiply
    38,320.45x = 57,459.84 × 13,353.80
  4. Step 4: Simplify right side
    38,320.45x = 767,307,125.81
  5. Step 5: Solve for x
    x = 767,307,125.81/38,320.45
  6. Step 6: Final answer
    x = 20,023.43

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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.