Home / 30,764.09-42,457.62-18,835.35

Finding the Fourth Proportional to 30,764.09, 42,457.62 and 18,835.35

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Solution

The fourth proportional to 30,764.09, 42,457.62 and 18,835.35 is: 25,994.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,764.09 : 42,457.62 = 18,835.35 : x
  2. Step 2: Convert to fraction form
    30,764.09/42,457.62 = 18,835.35/x
  3. Step 3: Cross multiply
    30,764.09x = 42,457.62 × 18,835.35
  4. Step 4: Simplify right side
    30,764.09x = 799,704,132.87
  5. Step 5: Solve for x
    x = 799,704,132.87/30,764.09
  6. Step 6: Final answer
    x = 25,994.73

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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.