Home / 28,228.32-38,955.01-16,291.65

Finding the Fourth Proportional to 28,228.32, 38,955.01 and 16,291.65

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Solution

The fourth proportional to 28,228.32, 38,955.01 and 16,291.65 is: 22,482.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,228.32 : 38,955.01 = 16,291.65 : x
  2. Step 2: Convert to fraction form
    28,228.32/38,955.01 = 16,291.65/x
  3. Step 3: Cross multiply
    28,228.32x = 38,955.01 × 16,291.65
  4. Step 4: Simplify right side
    28,228.32x = 634,641,388.67
  5. Step 5: Solve for x
    x = 634,641,388.67/28,228.32
  6. Step 6: Final answer
    x = 22,482.44

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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.