Home / 19,880.16-27,435.12-10,927.88

Finding the Fourth Proportional to 19,880.16, 27,435.12 and 10,927.88

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Solution

The fourth proportional to 19,880.16, 27,435.12 and 10,927.88 is: 15,080.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880.16 : 27,435.12 = 10,927.88 : x
  2. Step 2: Convert to fraction form
    19,880.16/27,435.12 = 10,927.88/x
  3. Step 3: Cross multiply
    19,880.16x = 27,435.12 × 10,927.88
  4. Step 4: Simplify right side
    19,880.16x = 299,807,699.15
  5. Step 5: Solve for x
    x = 299,807,699.15/19,880.16
  6. Step 6: Final answer
    x = 15,080.75

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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.