Home / 28,314.88-39,072.53-15,567.74

Finding the Fourth Proportional to 28,314.88, 39,072.53 and 15,567.74

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Solution

The fourth proportional to 28,314.88, 39,072.53 and 15,567.74 is: 21,482.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.88 : 39,072.53 = 15,567.74 : x
  2. Step 2: Convert to fraction form
    28,314.88/39,072.53 = 15,567.74/x
  3. Step 3: Cross multiply
    28,314.88x = 39,072.53 × 15,567.74
  4. Step 4: Simplify right side
    28,314.88x = 608,271,110.48
  5. Step 5: Solve for x
    x = 608,271,110.48/28,314.88
  6. Step 6: Final answer
    x = 21,482.38

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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.