Home / 30,659.10-42,292.23-19,309.07

Finding the Fourth Proportional to 30,659.10, 42,292.23 and 19,309.07

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Solution

The fourth proportional to 30,659.10, 42,292.23 and 19,309.07 is: 26,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,659.10 : 42,292.23 = 19,309.07 : x
  2. Step 2: Convert to fraction form
    30,659.10/42,292.23 = 19,309.07/x
  3. Step 3: Cross multiply
    30,659.10x = 42,292.23 × 19,309.07
  4. Step 4: Simplify right side
    30,659.10x = 816,623,418.06
  5. Step 5: Solve for x
    x = 816,623,418.06/30,659.10
  6. Step 6: Final answer
    x = 26,635.60

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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.