Home / 30,449.02-45,680.04-12,918.46

Finding the Fourth Proportional to 30,449.02, 45,680.04 and 12,918.46

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Solution

The fourth proportional to 30,449.02, 45,680.04 and 12,918.46 is: 19,380.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,449.02 : 45,680.04 = 12,918.46 : x
  2. Step 2: Convert to fraction form
    30,449.02/45,680.04 = 12,918.46/x
  3. Step 3: Cross multiply
    30,449.02x = 45,680.04 × 12,918.46
  4. Step 4: Simplify right side
    30,449.02x = 590,115,769.54
  5. Step 5: Solve for x
    x = 590,115,769.54/30,449.02
  6. Step 6: Final answer
    x = 19,380.45

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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.