Home / 19,681.94-27,161.85-10,729.55

Finding the Fourth Proportional to 19,681.94, 27,161.85 and 10,729.55

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Solution

The fourth proportional to 19,681.94, 27,161.85 and 10,729.55 is: 14,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681.94 : 27,161.85 = 10,729.55 : x
  2. Step 2: Convert to fraction form
    19,681.94/27,161.85 = 10,729.55/x
  3. Step 3: Cross multiply
    19,681.94x = 27,161.85 × 10,729.55
  4. Step 4: Simplify right side
    19,681.94x = 291,434,291.86
  5. Step 5: Solve for x
    x = 291,434,291.86/19,681.94
  6. Step 6: Final answer
    x = 14,807.20

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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.