Home / 30,373.56-45,518.76-19,287.97

Finding the Fourth Proportional to 30,373.56, 45,518.76 and 19,287.97

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Solution

The fourth proportional to 30,373.56, 45,518.76 and 19,287.97 is: 28,905.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,373.56 : 45,518.76 = 19,287.97 : x
  2. Step 2: Convert to fraction form
    30,373.56/45,518.76 = 19,287.97/x
  3. Step 3: Cross multiply
    30,373.56x = 45,518.76 × 19,287.97
  4. Step 4: Simplify right side
    30,373.56x = 877,964,619.56
  5. Step 5: Solve for x
    x = 877,964,619.56/30,373.56
  6. Step 6: Final answer
    x = 28,905.56

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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.