Home / 28,313.48-39,072.62-15,566.88

Finding the Fourth Proportional to 28,313.48, 39,072.62 and 15,566.88

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Solution

The fourth proportional to 28,313.48, 39,072.62 and 15,566.88 is: 21,482.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.48 : 39,072.62 = 15,566.88 : x
  2. Step 2: Convert to fraction form
    28,313.48/39,072.62 = 15,566.88/x
  3. Step 3: Cross multiply
    28,313.48x = 39,072.62 × 15,566.88
  4. Step 4: Simplify right side
    28,313.48x = 608,238,591.46
  5. Step 5: Solve for x
    x = 608,238,591.46/28,313.48
  6. Step 6: Final answer
    x = 21,482.30

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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.