Home / 30,572.06-42,210.04-19,104.38

Finding the Fourth Proportional to 30,572.06, 42,210.04 and 19,104.38

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Solution

The fourth proportional to 30,572.06, 42,210.04 and 19,104.38 is: 26,376.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,572.06 : 42,210.04 = 19,104.38 : x
  2. Step 2: Convert to fraction form
    30,572.06/42,210.04 = 19,104.38/x
  3. Step 3: Cross multiply
    30,572.06x = 42,210.04 × 19,104.38
  4. Step 4: Simplify right side
    30,572.06x = 806,396,643.98
  5. Step 5: Solve for x
    x = 806,396,643.98/30,572.06
  6. Step 6: Final answer
    x = 26,376.92

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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.