Home / 30,255.18-45,387.62-10,539.34

Finding the Fourth Proportional to 30,255.18, 45,387.62 and 10,539.34

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Solution

The fourth proportional to 30,255.18, 45,387.62 and 10,539.34 is: 15,810.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,255.18 : 45,387.62 = 10,539.34 : x
  2. Step 2: Convert to fraction form
    30,255.18/45,387.62 = 10,539.34/x
  3. Step 3: Cross multiply
    30,255.18x = 45,387.62 × 10,539.34
  4. Step 4: Simplify right side
    30,255.18x = 478,355,558.97
  5. Step 5: Solve for x
    x = 478,355,558.97/30,255.18
  6. Step 6: Final answer
    x = 15,810.70

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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.