Home / 15,871.04-21,924.36-14,690.06

Finding the Fourth Proportional to 15,871.04, 21,924.36 and 14,690.06

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Solution

The fourth proportional to 15,871.04, 21,924.36 and 14,690.06 is: 20,292.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.04 : 21,924.36 = 14,690.06 : x
  2. Step 2: Convert to fraction form
    15,871.04/21,924.36 = 14,690.06/x
  3. Step 3: Cross multiply
    15,871.04x = 21,924.36 × 14,690.06
  4. Step 4: Simplify right side
    15,871.04x = 322,070,163.86
  5. Step 5: Solve for x
    x = 322,070,163.86/15,871.04
  6. Step 6: Final answer
    x = 20,292.95

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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.