Home / 21,169.95-31,754.93-5,376.16

Finding the Fourth Proportional to 21,169.95, 31,754.93 and 5,376.16

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Solution

The fourth proportional to 21,169.95, 31,754.93 and 5,376.16 is: 8,064.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,169.95 : 31,754.93 = 5,376.16 : x
  2. Step 2: Convert to fraction form
    21,169.95/31,754.93 = 5,376.16/x
  3. Step 3: Cross multiply
    21,169.95x = 31,754.93 × 5,376.16
  4. Step 4: Simplify right side
    21,169.95x = 170,719,647.68
  5. Step 5: Solve for x
    x = 170,719,647.68/21,169.95
  6. Step 6: Final answer
    x = 8,064.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.