Home / 28,209.41-42,311.88-14,155.10

Finding the Fourth Proportional to 28,209.41, 42,311.88 and 14,155.10

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Solution

The fourth proportional to 28,209.41, 42,311.88 and 14,155.10 is: 21,231.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.41 : 42,311.88 = 14,155.10 : x
  2. Step 2: Convert to fraction form
    28,209.41/42,311.88 = 14,155.10/x
  3. Step 3: Cross multiply
    28,209.41x = 42,311.88 × 14,155.10
  4. Step 4: Simplify right side
    28,209.41x = 598,928,681.03
  5. Step 5: Solve for x
    x = 598,928,681.03/28,209.41
  6. Step 6: Final answer
    x = 21,231.52

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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.