Home / 28,528.96-39,356.71-18,460.65

Finding the Fourth Proportional to 28,528.96, 39,356.71 and 18,460.65

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Solution

The fourth proportional to 28,528.96, 39,356.71 and 18,460.65 is: 25,467.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.96 : 39,356.71 = 18,460.65 : x
  2. Step 2: Convert to fraction form
    28,528.96/39,356.71 = 18,460.65/x
  3. Step 3: Cross multiply
    28,528.96x = 39,356.71 × 18,460.65
  4. Step 4: Simplify right side
    28,528.96x = 726,550,448.46
  5. Step 5: Solve for x
    x = 726,550,448.46/28,528.96
  6. Step 6: Final answer
    x = 25,467.12

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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.