Home / 30,380.47-45,569.29-10,659.19

Finding the Fourth Proportional to 30,380.47, 45,569.29 and 10,659.19

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Solution

The fourth proportional to 30,380.47, 45,569.29 and 10,659.19 is: 15,988.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,380.47 : 45,569.29 = 10,659.19 : x
  2. Step 2: Convert to fraction form
    30,380.47/45,569.29 = 10,659.19/x
  3. Step 3: Cross multiply
    30,380.47x = 45,569.29 × 10,659.19
  4. Step 4: Simplify right side
    30,380.47x = 485,731,720.28
  5. Step 5: Solve for x
    x = 485,731,720.28/30,380.47
  6. Step 6: Final answer
    x = 15,988.29

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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.