Home / 30,632.72-42,272.08-18,716.00

Finding the Fourth Proportional to 30,632.72, 42,272.08 and 18,716.00

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Solution

The fourth proportional to 30,632.72, 42,272.08 and 18,716.00 is: 25,827.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,632.72 : 42,272.08 = 18,716.00 : x
  2. Step 2: Convert to fraction form
    30,632.72/42,272.08 = 18,716.00/x
  3. Step 3: Cross multiply
    30,632.72x = 42,272.08 × 18,716.00
  4. Step 4: Simplify right side
    30,632.72x = 791,163,991.13
  5. Step 5: Solve for x
    x = 791,163,991.13/30,632.72
  6. Step 6: Final answer
    x = 25,827.42

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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.