Home / 30,503.67-42,073.32-18,567.77

Finding the Fourth Proportional to 30,503.67, 42,073.32 and 18,567.77

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Solution

The fourth proportional to 30,503.67, 42,073.32 and 18,567.77 is: 25,610.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,503.67 : 42,073.32 = 18,567.77 : x
  2. Step 2: Convert to fraction form
    30,503.67/42,073.32 = 18,567.77/x
  3. Step 3: Cross multiply
    30,503.67x = 42,073.32 × 18,567.77
  4. Step 4: Simplify right side
    30,503.67x = 781,207,588.16
  5. Step 5: Solve for x
    x = 781,207,588.16/30,503.67
  6. Step 6: Final answer
    x = 25,610.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.