Home / 28,539.59-42,815.88-15,391.67

Finding the Fourth Proportional to 28,539.59, 42,815.88 and 15,391.67

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Solution

The fourth proportional to 28,539.59, 42,815.88 and 15,391.67 is: 23,091.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539.59 : 42,815.88 = 15,391.67 : x
  2. Step 2: Convert to fraction form
    28,539.59/42,815.88 = 15,391.67/x
  3. Step 3: Cross multiply
    28,539.59x = 42,815.88 × 15,391.67
  4. Step 4: Simplify right side
    28,539.59x = 659,007,681.64
  5. Step 5: Solve for x
    x = 659,007,681.64/28,539.59
  6. Step 6: Final answer
    x = 23,091.00

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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.