Home / 30,455.34-45,696.65-19,359.15

Finding the Fourth Proportional to 30,455.34, 45,696.65 and 19,359.15

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Solution

The fourth proportional to 30,455.34, 45,696.65 and 19,359.15 is: 29,047.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.34 : 45,696.65 = 19,359.15 : x
  2. Step 2: Convert to fraction form
    30,455.34/45,696.65 = 19,359.15/x
  3. Step 3: Cross multiply
    30,455.34x = 45,696.65 × 19,359.15
  4. Step 4: Simplify right side
    30,455.34x = 884,648,205.05
  5. Step 5: Solve for x
    x = 884,648,205.05/30,455.34
  6. Step 6: Final answer
    x = 29,047.39

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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.