Home / 30,427.34-41,988.90-16,629.12

Finding the Fourth Proportional to 30,427.34, 41,988.90 and 16,629.12

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Solution

The fourth proportional to 30,427.34, 41,988.90 and 16,629.12 is: 22,947.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,427.34 : 41,988.90 = 16,629.12 : x
  2. Step 2: Convert to fraction form
    30,427.34/41,988.90 = 16,629.12/x
  3. Step 3: Cross multiply
    30,427.34x = 41,988.90 × 16,629.12
  4. Step 4: Simplify right side
    30,427.34x = 698,238,456.77
  5. Step 5: Solve for x
    x = 698,238,456.77/30,427.34
  6. Step 6: Final answer
    x = 22,947.74

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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.