Home / 19,451.36-26,798.64-18,138.08

Finding the Fourth Proportional to 19,451.36, 26,798.64 and 18,138.08

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Solution

The fourth proportional to 19,451.36, 26,798.64 and 18,138.08 is: 24,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,451.36 : 26,798.64 = 18,138.08 : x
  2. Step 2: Convert to fraction form
    19,451.36/26,798.64 = 18,138.08/x
  3. Step 3: Cross multiply
    19,451.36x = 26,798.64 × 18,138.08
  4. Step 4: Simplify right side
    19,451.36x = 486,075,876.21
  5. Step 5: Solve for x
    x = 486,075,876.21/19,451.36
  6. Step 6: Final answer
    x = 24,989.30

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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.