Home / 28,313.19-39,072.68-15,566.91

Finding the Fourth Proportional to 28,313.19, 39,072.68 and 15,566.91

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Solution

The fourth proportional to 28,313.19, 39,072.68 and 15,566.91 is: 21,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.19 : 39,072.68 = 15,566.91 : x
  2. Step 2: Convert to fraction form
    28,313.19/39,072.68 = 15,566.91/x
  3. Step 3: Cross multiply
    28,313.19x = 39,072.68 × 15,566.91
  4. Step 4: Simplify right side
    28,313.19x = 608,240,815.18
  5. Step 5: Solve for x
    x = 608,240,815.18/28,313.19
  6. Step 6: Final answer
    x = 21,482.60

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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.