Home / 30,427.67-45,646.91-13,787.03

Finding the Fourth Proportional to 30,427.67, 45,646.91 and 13,787.03

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Solution

The fourth proportional to 30,427.67, 45,646.91 and 13,787.03 is: 20,683.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,427.67 : 45,646.91 = 13,787.03 : x
  2. Step 2: Convert to fraction form
    30,427.67/45,646.91 = 13,787.03/x
  3. Step 3: Cross multiply
    30,427.67x = 45,646.91 × 13,787.03
  4. Step 4: Simplify right side
    30,427.67x = 629,335,414.46
  5. Step 5: Solve for x
    x = 629,335,414.46/30,427.67
  6. Step 6: Final answer
    x = 20,683.00

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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.