Home / 28,878.40-43,317.60-14,079.70

Finding the Fourth Proportional to 28,878.40, 43,317.60 and 14,079.70

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Solution

The fourth proportional to 28,878.40, 43,317.60 and 14,079.70 is: 21,119.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,878.40 : 43,317.60 = 14,079.70 : x
  2. Step 2: Convert to fraction form
    28,878.40/43,317.60 = 14,079.70/x
  3. Step 3: Cross multiply
    28,878.40x = 43,317.60 × 14,079.70
  4. Step 4: Simplify right side
    28,878.40x = 609,898,812.72
  5. Step 5: Solve for x
    x = 609,898,812.72/28,878.40
  6. Step 6: Final answer
    x = 21,119.55

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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.