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Finding the Fourth Proportional to 30,575.58, 45,865.80 and 13,045.56

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Solution

The fourth proportional to 30,575.58, 45,865.80 and 13,045.56 is: 19,569.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,575.58 : 45,865.80 = 13,045.56 : x
  2. Step 2: Convert to fraction form
    30,575.58/45,865.80 = 13,045.56/x
  3. Step 3: Cross multiply
    30,575.58x = 45,865.80 × 13,045.56
  4. Step 4: Simplify right side
    30,575.58x = 598,345,045.85
  5. Step 5: Solve for x
    x = 598,345,045.85/30,575.58
  6. Step 6: Final answer
    x = 19,569.38

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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.