Home / 19,810.32-27,333.77-13,437.78

Finding the Fourth Proportional to 19,810.32, 27,333.77 and 13,437.78

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Solution

The fourth proportional to 19,810.32, 27,333.77 and 13,437.78 is: 18,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,810.32 : 27,333.77 = 13,437.78 : x
  2. Step 2: Convert to fraction form
    19,810.32/27,333.77 = 13,437.78/x
  3. Step 3: Cross multiply
    19,810.32x = 27,333.77 × 13,437.78
  4. Step 4: Simplify right side
    19,810.32x = 367,305,120.64
  5. Step 5: Solve for x
    x = 367,305,120.64/19,810.32
  6. Step 6: Final answer
    x = 18,541.10

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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.