Home / 28,866.06-43,328.28-20,555.46

Finding the Fourth Proportional to 28,866.06, 43,328.28 and 20,555.46

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Solution

The fourth proportional to 28,866.06, 43,328.28 and 20,555.46 is: 30,853.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,866.06 : 43,328.28 = 20,555.46 : x
  2. Step 2: Convert to fraction form
    28,866.06/43,328.28 = 20,555.46/x
  3. Step 3: Cross multiply
    28,866.06x = 43,328.28 × 20,555.46
  4. Step 4: Simplify right side
    28,866.06x = 890,632,726.41
  5. Step 5: Solve for x
    x = 890,632,726.41/28,866.06
  6. Step 6: Final answer
    x = 30,853.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.