Home / 55,907.40-83,866.56-20,838.84

Finding the Fourth Proportional to 55,907.40, 83,866.56 and 20,838.84

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Solution

The fourth proportional to 55,907.40, 83,866.56 and 20,838.84 is: 31,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,907.40 : 83,866.56 = 20,838.84 : x
  2. Step 2: Convert to fraction form
    55,907.40/83,866.56 = 20,838.84/x
  3. Step 3: Cross multiply
    55,907.40x = 83,866.56 × 20,838.84
  4. Step 4: Simplify right side
    55,907.40x = 1,747,681,825.19
  5. Step 5: Solve for x
    x = 1,747,681,825.19/55,907.40
  6. Step 6: Final answer
    x = 31,260.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.