Home / 39,513.99-54,549.14-30,541.22

Finding the Fourth Proportional to 39,513.99, 54,549.14 and 30,541.22

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Solution

The fourth proportional to 39,513.99, 54,549.14 and 30,541.22 is: 42,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,513.99 : 54,549.14 = 30,541.22 : x
  2. Step 2: Convert to fraction form
    39,513.99/54,549.14 = 30,541.22/x
  3. Step 3: Cross multiply
    39,513.99x = 54,549.14 × 30,541.22
  4. Step 4: Simplify right side
    39,513.99x = 1,665,996,860.10
  5. Step 5: Solve for x
    x = 1,665,996,860.10/39,513.99
  6. Step 6: Final answer
    x = 42,162.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.