Home / 30,665.60-45,998.40-15,113.60

Finding the Fourth Proportional to 30,665.60, 45,998.40 and 15,113.60

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Solution

The fourth proportional to 30,665.60, 45,998.40 and 15,113.60 is: 22,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,665.60 : 45,998.40 = 15,113.60 : x
  2. Step 2: Convert to fraction form
    30,665.60/45,998.40 = 15,113.60/x
  3. Step 3: Cross multiply
    30,665.60x = 45,998.40 × 15,113.60
  4. Step 4: Simplify right side
    30,665.60x = 695,201,418.24
  5. Step 5: Solve for x
    x = 695,201,418.24/30,665.60
  6. Step 6: Final answer
    x = 22,670.40

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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.