Home / 30,844.77-42,561.20-17,415.72

Finding the Fourth Proportional to 30,844.77, 42,561.20 and 17,415.72

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Solution

The fourth proportional to 30,844.77, 42,561.20 and 17,415.72 is: 24,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,844.77 : 42,561.20 = 17,415.72 : x
  2. Step 2: Convert to fraction form
    30,844.77/42,561.20 = 17,415.72/x
  3. Step 3: Cross multiply
    30,844.77x = 42,561.20 × 17,415.72
  4. Step 4: Simplify right side
    30,844.77x = 741,233,854.99
  5. Step 5: Solve for x
    x = 741,233,854.99/30,844.77
  6. Step 6: Final answer
    x = 24,031.10

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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.