Home / 19,019.93-28,390.54-16,775.45

Finding the Fourth Proportional to 19,019.93, 28,390.54 and 16,775.45

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Solution

The fourth proportional to 19,019.93, 28,390.54 and 16,775.45 is: 25,040.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.93 : 28,390.54 = 16,775.45 : x
  2. Step 2: Convert to fraction form
    19,019.93/28,390.54 = 16,775.45/x
  3. Step 3: Cross multiply
    19,019.93x = 28,390.54 × 16,775.45
  4. Step 4: Simplify right side
    19,019.93x = 476,264,000.37
  5. Step 5: Solve for x
    x = 476,264,000.37/19,019.93
  6. Step 6: Final answer
    x = 25,040.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.