Home / 22,365.04-30,860.08-12,931.80

Finding the Fourth Proportional to 22,365.04, 30,860.08 and 12,931.80

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Solution

The fourth proportional to 22,365.04, 30,860.08 and 12,931.80 is: 17,843.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,365.04 : 30,860.08 = 12,931.80 : x
  2. Step 2: Convert to fraction form
    22,365.04/30,860.08 = 12,931.80/x
  3. Step 3: Cross multiply
    22,365.04x = 30,860.08 × 12,931.80
  4. Step 4: Simplify right side
    22,365.04x = 399,076,382.54
  5. Step 5: Solve for x
    x = 399,076,382.54/22,365.04
  6. Step 6: Final answer
    x = 17,843.76

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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.