Home / 19,830.95-27,367.47-10,878.83

Finding the Fourth Proportional to 19,830.95, 27,367.47 and 10,878.83

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Solution

The fourth proportional to 19,830.95, 27,367.47 and 10,878.83 is: 15,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,830.95 : 27,367.47 = 10,878.83 : x
  2. Step 2: Convert to fraction form
    19,830.95/27,367.47 = 10,878.83/x
  3. Step 3: Cross multiply
    19,830.95x = 27,367.47 × 10,878.83
  4. Step 4: Simplify right side
    19,830.95x = 297,725,916.82
  5. Step 5: Solve for x
    x = 297,725,916.82/19,830.95
  6. Step 6: Final answer
    x = 15,013.20

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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.