Home / 19,811.66-27,340.43-10,858.59

Finding the Fourth Proportional to 19,811.66, 27,340.43 and 10,858.59

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Solution

The fourth proportional to 19,811.66, 27,340.43 and 10,858.59 is: 14,985.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.66 : 27,340.43 = 10,858.59 : x
  2. Step 2: Convert to fraction form
    19,811.66/27,340.43 = 10,858.59/x
  3. Step 3: Cross multiply
    19,811.66x = 27,340.43 × 10,858.59
  4. Step 4: Simplify right side
    19,811.66x = 296,878,465.50
  5. Step 5: Solve for x
    x = 296,878,465.50/19,811.66
  6. Step 6: Final answer
    x = 14,985.04

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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.