Home / 19,860.03-27,406.70-10,785.57

Finding the Fourth Proportional to 19,860.03, 27,406.70 and 10,785.57

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Solution

The fourth proportional to 19,860.03, 27,406.70 and 10,785.57 is: 14,884.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.03 : 27,406.70 = 10,785.57 : x
  2. Step 2: Convert to fraction form
    19,860.03/27,406.70 = 10,785.57/x
  3. Step 3: Cross multiply
    19,860.03x = 27,406.70 × 10,785.57
  4. Step 4: Simplify right side
    19,860.03x = 295,596,827.39
  5. Step 5: Solve for x
    x = 295,596,827.39/19,860.03
  6. Step 6: Final answer
    x = 14,884.01

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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.