Home / 28,501.87-39,332.46-15,926.62

Finding the Fourth Proportional to 28,501.87, 39,332.46 and 15,926.62

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Solution

The fourth proportional to 28,501.87, 39,332.46 and 15,926.62 is: 21,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.87 : 39,332.46 = 15,926.62 : x
  2. Step 2: Convert to fraction form
    28,501.87/39,332.46 = 15,926.62/x
  3. Step 3: Cross multiply
    28,501.87x = 39,332.46 × 15,926.62
  4. Step 4: Simplify right side
    28,501.87x = 626,433,144.09
  5. Step 5: Solve for x
    x = 626,433,144.09/28,501.87
  6. Step 6: Final answer
    x = 21,978.67

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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.