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Finding the Fourth Proportional to 30,974.59, 46,347.06 and 18,501.40

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Solution

The fourth proportional to 30,974.59, 46,347.06 and 18,501.40 is: 27,683.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,974.59 : 46,347.06 = 18,501.40 : x
  2. Step 2: Convert to fraction form
    30,974.59/46,347.06 = 18,501.40/x
  3. Step 3: Cross multiply
    30,974.59x = 46,347.06 × 18,501.40
  4. Step 4: Simplify right side
    30,974.59x = 857,485,495.88
  5. Step 5: Solve for x
    x = 857,485,495.88/30,974.59
  6. Step 6: Final answer
    x = 27,683.51

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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.