Home / 19,421.25-26,805.74-13,750.10

Finding the Fourth Proportional to 19,421.25, 26,805.74 and 13,750.10

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Solution

The fourth proportional to 19,421.25, 26,805.74 and 13,750.10 is: 18,978.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.25 : 26,805.74 = 13,750.10 : x
  2. Step 2: Convert to fraction form
    19,421.25/26,805.74 = 13,750.10/x
  3. Step 3: Cross multiply
    19,421.25x = 26,805.74 × 13,750.10
  4. Step 4: Simplify right side
    19,421.25x = 368,581,605.57
  5. Step 5: Solve for x
    x = 368,581,605.57/19,421.25
  6. Step 6: Final answer
    x = 18,978.26

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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.