Home / 19,641.06-27,113.13-13,670.55

Finding the Fourth Proportional to 19,641.06, 27,113.13 and 13,670.55

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Solution

The fourth proportional to 19,641.06, 27,113.13 and 13,670.55 is: 18,871.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.06 : 27,113.13 = 13,670.55 : x
  2. Step 2: Convert to fraction form
    19,641.06/27,113.13 = 13,670.55/x
  3. Step 3: Cross multiply
    19,641.06x = 27,113.13 × 13,670.55
  4. Step 4: Simplify right side
    19,641.06x = 370,651,399.32
  5. Step 5: Solve for x
    x = 370,651,399.32/19,641.06
  6. Step 6: Final answer
    x = 18,871.25

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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.