Home / 28,314.20-39,073.38-15,567.32

Finding the Fourth Proportional to 28,314.20, 39,073.38 and 15,567.32

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Solution

The fourth proportional to 28,314.20, 39,073.38 and 15,567.32 is: 21,482.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.20 : 39,073.38 = 15,567.32 : x
  2. Step 2: Convert to fraction form
    28,314.20/39,073.38 = 15,567.32/x
  3. Step 3: Cross multiply
    28,314.20x = 39,073.38 × 15,567.32
  4. Step 4: Simplify right side
    28,314.20x = 608,267,809.94
  5. Step 5: Solve for x
    x = 608,267,809.94/28,314.20
  6. Step 6: Final answer
    x = 21,482.78

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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.