Home / 42,447.60-63,630.90-15,786.45

Finding the Fourth Proportional to 42,447.60, 63,630.90 and 15,786.45

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Solution

The fourth proportional to 42,447.60, 63,630.90 and 15,786.45 is: 23,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,447.60 : 63,630.90 = 15,786.45 : x
  2. Step 2: Convert to fraction form
    42,447.60/63,630.90 = 15,786.45/x
  3. Step 3: Cross multiply
    42,447.60x = 63,630.90 × 15,786.45
  4. Step 4: Simplify right side
    42,447.60x = 1,004,506,021.31
  5. Step 5: Solve for x
    x = 1,004,506,021.31/42,447.60
  6. Step 6: Final answer
    x = 23,664.61

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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.