Home / 28,314.96-39,075.08-15,568.69

Finding the Fourth Proportional to 28,314.96, 39,075.08 and 15,568.69

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Solution

The fourth proportional to 28,314.96, 39,075.08 and 15,568.69 is: 21,485.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.96 : 39,075.08 = 15,568.69 : x
  2. Step 2: Convert to fraction form
    28,314.96/39,075.08 = 15,568.69/x
  3. Step 3: Cross multiply
    28,314.96x = 39,075.08 × 15,568.69
  4. Step 4: Simplify right side
    28,314.96x = 608,347,807.25
  5. Step 5: Solve for x
    x = 608,347,807.25/28,314.96
  6. Step 6: Final answer
    x = 21,485.03

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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.