Home / 42,610.90-63,904.20-13,021.60

Finding the Fourth Proportional to 42,610.90, 63,904.20 and 13,021.60

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Solution

The fourth proportional to 42,610.90, 63,904.20 and 13,021.60 is: 19,528.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,610.90 : 63,904.20 = 13,021.60 : x
  2. Step 2: Convert to fraction form
    42,610.90/63,904.20 = 13,021.60/x
  3. Step 3: Cross multiply
    42,610.90x = 63,904.20 × 13,021.60
  4. Step 4: Simplify right side
    42,610.90x = 832,134,930.72
  5. Step 5: Solve for x
    x = 832,134,930.72/42,610.90
  6. Step 6: Final answer
    x = 19,528.69

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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.