Home / 30,904.24-42,644.66-18,968.08

Finding the Fourth Proportional to 30,904.24, 42,644.66 and 18,968.08

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Solution

The fourth proportional to 30,904.24, 42,644.66 and 18,968.08 is: 26,173.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,904.24 : 42,644.66 = 18,968.08 : x
  2. Step 2: Convert to fraction form
    30,904.24/42,644.66 = 18,968.08/x
  3. Step 3: Cross multiply
    30,904.24x = 42,644.66 × 18,968.08
  4. Step 4: Simplify right side
    30,904.24x = 808,887,322.45
  5. Step 5: Solve for x
    x = 808,887,322.45/30,904.24
  6. Step 6: Final answer
    x = 26,173.99

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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.