Home / 20,265.52-27,985.74-19,161.10

Finding the Fourth Proportional to 20,265.52, 27,985.74 and 19,161.10

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Solution

The fourth proportional to 20,265.52, 27,985.74 and 19,161.10 is: 26,460.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.52 : 27,985.74 = 19,161.10 : x
  2. Step 2: Convert to fraction form
    20,265.52/27,985.74 = 19,161.10/x
  3. Step 3: Cross multiply
    20,265.52x = 27,985.74 × 19,161.10
  4. Step 4: Simplify right side
    20,265.52x = 536,237,562.71
  5. Step 5: Solve for x
    x = 536,237,562.71/20,265.52
  6. Step 6: Final answer
    x = 26,460.59

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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.