Home / 19,810.86-27,338.99-10,858.40

Finding the Fourth Proportional to 19,810.86, 27,338.99 and 10,858.40

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Solution

The fourth proportional to 19,810.86, 27,338.99 and 10,858.40 is: 14,984.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,810.86 : 27,338.99 = 10,858.40 : x
  2. Step 2: Convert to fraction form
    19,810.86/27,338.99 = 10,858.40/x
  3. Step 3: Cross multiply
    19,810.86x = 27,338.99 × 10,858.40
  4. Step 4: Simplify right side
    19,810.86x = 296,857,689.02
  5. Step 5: Solve for x
    x = 296,857,689.02/19,810.86
  6. Step 6: Final answer
    x = 14,984.59

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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.