Home / 19,851.95-27,396.17-10,899.61

Finding the Fourth Proportional to 19,851.95, 27,396.17 and 10,899.61

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Solution

The fourth proportional to 19,851.95, 27,396.17 and 10,899.61 is: 15,041.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.95 : 27,396.17 = 10,899.61 : x
  2. Step 2: Convert to fraction form
    19,851.95/27,396.17 = 10,899.61/x
  3. Step 3: Cross multiply
    19,851.95x = 27,396.17 × 10,899.61
  4. Step 4: Simplify right side
    19,851.95x = 298,607,445.51
  5. Step 5: Solve for x
    x = 298,607,445.51/19,851.95
  6. Step 6: Final answer
    x = 15,041.72

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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.