Home / 28,539.56-39,384.60-15,964.31

Finding the Fourth Proportional to 28,539.56, 39,384.60 and 15,964.31

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Solution

The fourth proportional to 28,539.56, 39,384.60 and 15,964.31 is: 22,030.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539.56 : 39,384.60 = 15,964.31 : x
  2. Step 2: Convert to fraction form
    28,539.56/39,384.60 = 15,964.31/x
  3. Step 3: Cross multiply
    28,539.56x = 39,384.60 × 15,964.31
  4. Step 4: Simplify right side
    28,539.56x = 628,748,002.22
  5. Step 5: Solve for x
    x = 628,748,002.22/28,539.56
  6. Step 6: Final answer
    x = 22,030.75

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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.