Home / 20,347.94-28,075.50-11,848.16

Finding the Fourth Proportional to 20,347.94, 28,075.50 and 11,848.16

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Solution

The fourth proportional to 20,347.94, 28,075.50 and 11,848.16 is: 16,347.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.94 : 28,075.50 = 11,848.16 : x
  2. Step 2: Convert to fraction form
    20,347.94/28,075.50 = 11,848.16/x
  3. Step 3: Cross multiply
    20,347.94x = 28,075.50 × 11,848.16
  4. Step 4: Simplify right side
    20,347.94x = 332,643,016.08
  5. Step 5: Solve for x
    x = 332,643,016.08/20,347.94
  6. Step 6: Final answer
    x = 16,347.75

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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.