Home / 30,574.07-42,174.34-19,225.60

Finding the Fourth Proportional to 30,574.07, 42,174.34 and 19,225.60

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Solution

The fourth proportional to 30,574.07, 42,174.34 and 19,225.60 is: 26,520.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,574.07 : 42,174.34 = 19,225.60 : x
  2. Step 2: Convert to fraction form
    30,574.07/42,174.34 = 19,225.60/x
  3. Step 3: Cross multiply
    30,574.07x = 42,174.34 × 19,225.60
  4. Step 4: Simplify right side
    30,574.07x = 810,826,991.10
  5. Step 5: Solve for x
    x = 810,826,991.10/30,574.07
  6. Step 6: Final answer
    x = 26,520.09

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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.