Home / 30,521.06-45,699.56-19,367.36

Finding the Fourth Proportional to 30,521.06, 45,699.56 and 19,367.36

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Solution

The fourth proportional to 30,521.06, 45,699.56 and 19,367.36 is: 28,998.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,521.06 : 45,699.56 = 19,367.36 : x
  2. Step 2: Convert to fraction form
    30,521.06/45,699.56 = 19,367.36/x
  3. Step 3: Cross multiply
    30,521.06x = 45,699.56 × 19,367.36
  4. Step 4: Simplify right side
    30,521.06x = 885,079,830.36
  5. Step 5: Solve for x
    x = 885,079,830.36/30,521.06
  6. Step 6: Final answer
    x = 28,998.99

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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.