Home / 30,390.10-45,588.79-9,327.39

Finding the Fourth Proportional to 30,390.10, 45,588.79 and 9,327.39

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Solution

The fourth proportional to 30,390.10, 45,588.79 and 9,327.39 is: 13,992.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.10 : 45,588.79 = 9,327.39 : x
  2. Step 2: Convert to fraction form
    30,390.10/45,588.79 = 9,327.39/x
  3. Step 3: Cross multiply
    30,390.10x = 45,588.79 × 9,327.39
  4. Step 4: Simplify right side
    30,390.10x = 425,224,172.70
  5. Step 5: Solve for x
    x = 425,224,172.70/30,390.10
  6. Step 6: Final answer
    x = 13,992.19

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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.