Home / 42,650.61-63,975.91-11,485.86

Finding the Fourth Proportional to 42,650.61, 63,975.91 and 11,485.86

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Solution

The fourth proportional to 42,650.61, 63,975.91 and 11,485.86 is: 17,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,650.61 : 63,975.91 = 11,485.86 : x
  2. Step 2: Convert to fraction form
    42,650.61/63,975.91 = 11,485.86/x
  3. Step 3: Cross multiply
    42,650.61x = 63,975.91 × 11,485.86
  4. Step 4: Simplify right side
    42,650.61x = 734,818,345.63
  5. Step 5: Solve for x
    x = 734,818,345.63/42,650.61
  6. Step 6: Final answer
    x = 17,228.79

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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.