Home / 30,459.47-45,574.38-17,986.28

Finding the Fourth Proportional to 30,459.47, 45,574.38 and 17,986.28

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Solution

The fourth proportional to 30,459.47, 45,574.38 and 17,986.28 is: 26,911.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,459.47 : 45,574.38 = 17,986.28 : x
  2. Step 2: Convert to fraction form
    30,459.47/45,574.38 = 17,986.28/x
  3. Step 3: Cross multiply
    30,459.47x = 45,574.38 × 17,986.28
  4. Step 4: Simplify right side
    30,459.47x = 819,713,331.63
  5. Step 5: Solve for x
    x = 819,713,331.63/30,459.47
  6. Step 6: Final answer
    x = 26,911.61

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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.