Home / 28,449.31-39,267.08-17,280.67

Finding the Fourth Proportional to 28,449.31, 39,267.08 and 17,280.67

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Solution

The fourth proportional to 28,449.31, 39,267.08 and 17,280.67 is: 23,851.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.31 : 39,267.08 = 17,280.67 : x
  2. Step 2: Convert to fraction form
    28,449.31/39,267.08 = 17,280.67/x
  3. Step 3: Cross multiply
    28,449.31x = 39,267.08 × 17,280.67
  4. Step 4: Simplify right side
    28,449.31x = 678,561,364.94
  5. Step 5: Solve for x
    x = 678,561,364.94/28,449.31
  6. Step 6: Final answer
    x = 23,851.59

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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.