Home / 30,748.79-42,433.60-17,317.37

Finding the Fourth Proportional to 30,748.79, 42,433.60 and 17,317.37

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Solution

The fourth proportional to 30,748.79, 42,433.60 and 17,317.37 is: 23,898.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,748.79 : 42,433.60 = 17,317.37 : x
  2. Step 2: Convert to fraction form
    30,748.79/42,433.60 = 17,317.37/x
  3. Step 3: Cross multiply
    30,748.79x = 42,433.60 × 17,317.37
  4. Step 4: Simplify right side
    30,748.79x = 734,838,351.63
  5. Step 5: Solve for x
    x = 734,838,351.63/30,748.79
  6. Step 6: Final answer
    x = 23,898.12

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1.5x scale

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.