Home / 19,880.18-27,434.80-10,927.89

Finding the Fourth Proportional to 19,880.18, 27,434.80 and 10,927.89

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Solution

The fourth proportional to 19,880.18, 27,434.80 and 10,927.89 is: 15,080.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880.18 : 27,434.80 = 10,927.89 : x
  2. Step 2: Convert to fraction form
    19,880.18/27,434.80 = 10,927.89/x
  3. Step 3: Cross multiply
    19,880.18x = 27,434.80 × 10,927.89
  4. Step 4: Simplify right side
    19,880.18x = 299,804,490.23
  5. Step 5: Solve for x
    x = 299,804,490.23/19,880.18
  6. Step 6: Final answer
    x = 15,080.57

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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.