Home / 19,678.55-29,635.47-17,242.77

Finding the Fourth Proportional to 19,678.55, 29,635.47 and 17,242.77

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Solution

The fourth proportional to 19,678.55, 29,635.47 and 17,242.77 is: 25,967.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.55 : 29,635.47 = 17,242.77 : x
  2. Step 2: Convert to fraction form
    19,678.55/29,635.47 = 17,242.77/x
  3. Step 3: Cross multiply
    19,678.55x = 29,635.47 × 17,242.77
  4. Step 4: Simplify right side
    19,678.55x = 510,997,704.18
  5. Step 5: Solve for x
    x = 510,997,704.18/19,678.55
  6. Step 6: Final answer
    x = 25,967.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.