Home / 19,873.10-27,424.32-10,920.60

Finding the Fourth Proportional to 19,873.10, 27,424.32 and 10,920.60

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Solution

The fourth proportional to 19,873.10, 27,424.32 and 10,920.60 is: 15,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.10 : 27,424.32 = 10,920.60 : x
  2. Step 2: Convert to fraction form
    19,873.10/27,424.32 = 10,920.60/x
  3. Step 3: Cross multiply
    19,873.10x = 27,424.32 × 10,920.60
  4. Step 4: Simplify right side
    19,873.10x = 299,490,028.99
  5. Step 5: Solve for x
    x = 299,490,028.99/19,873.10
  6. Step 6: Final answer
    x = 15,070.12

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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.