Home / 30,125.72-45,187.88-10,402.43

Finding the Fourth Proportional to 30,125.72, 45,187.88 and 10,402.43

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Solution

The fourth proportional to 30,125.72, 45,187.88 and 10,402.43 is: 15,603.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,125.72 : 45,187.88 = 10,402.43 : x
  2. Step 2: Convert to fraction form
    30,125.72/45,187.88 = 10,402.43/x
  3. Step 3: Cross multiply
    30,125.72x = 45,187.88 × 10,402.43
  4. Step 4: Simplify right side
    30,125.72x = 470,063,480.60
  5. Step 5: Solve for x
    x = 470,063,480.60/30,125.72
  6. Step 6: Final answer
    x = 15,603.39

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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.