Home / 19,881.95-27,436.88-10,807.22

Finding the Fourth Proportional to 19,881.95, 27,436.88 and 10,807.22

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Solution

The fourth proportional to 19,881.95, 27,436.88 and 10,807.22 is: 14,913.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.95 : 27,436.88 = 10,807.22 : x
  2. Step 2: Convert to fraction form
    19,881.95/27,436.88 = 10,807.22/x
  3. Step 3: Cross multiply
    19,881.95x = 27,436.88 × 10,807.22
  4. Step 4: Simplify right side
    19,881.95x = 296,516,493.88
  5. Step 5: Solve for x
    x = 296,516,493.88/19,881.95
  6. Step 6: Final answer
    x = 14,913.86

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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.