Home / 30,609.81-45,923.28-10,890.36

Finding the Fourth Proportional to 30,609.81, 45,923.28 and 10,890.36

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Solution

The fourth proportional to 30,609.81, 45,923.28 and 10,890.36 is: 16,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,609.81 : 45,923.28 = 10,890.36 : x
  2. Step 2: Convert to fraction form
    30,609.81/45,923.28 = 10,890.36/x
  3. Step 3: Cross multiply
    30,609.81x = 45,923.28 × 10,890.36
  4. Step 4: Simplify right side
    30,609.81x = 500,121,051.58
  5. Step 5: Solve for x
    x = 500,121,051.58/30,609.81
  6. Step 6: Final answer
    x = 16,338.59

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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.