Home / 30,011.54-45,045.56-15,231.06

Finding the Fourth Proportional to 30,011.54, 45,045.56 and 15,231.06

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Solution

The fourth proportional to 30,011.54, 45,045.56 and 15,231.06 is: 22,860.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,011.54 : 45,045.56 = 15,231.06 : x
  2. Step 2: Convert to fraction form
    30,011.54/45,045.56 = 15,231.06/x
  3. Step 3: Cross multiply
    30,011.54x = 45,045.56 × 15,231.06
  4. Step 4: Simplify right side
    30,011.54x = 686,091,550.94
  5. Step 5: Solve for x
    x = 686,091,550.94/30,011.54
  6. Step 6: Final answer
    x = 22,860.93

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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.