Home / 34,836.69-48,075-18,921.45

Finding the Fourth Proportional to 34,836.69, 48,075 and 18,921.45

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Solution

The fourth proportional to 34,836.69, 48,075 and 18,921.45 is: 26,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,836.69 : 48,075 = 18,921.45 : x
  2. Step 2: Convert to fraction form
    34,836.69/48,075 = 18,921.45/x
  3. Step 3: Cross multiply
    34,836.69x = 48,075 × 18,921.45
  4. Step 4: Simplify right side
    34,836.69x = 909,648,708.75
  5. Step 5: Solve for x
    x = 909,648,708.75/34,836.69
  6. Step 6: Final answer
    x = 26,111.80

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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.