Home / 28,266.60-39,013.74-19,766.46

Finding the Fourth Proportional to 28,266.60, 39,013.74 and 19,766.46

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Solution

The fourth proportional to 28,266.60, 39,013.74 and 19,766.46 is: 27,281.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266.60 : 39,013.74 = 19,766.46 : x
  2. Step 2: Convert to fraction form
    28,266.60/39,013.74 = 19,766.46/x
  3. Step 3: Cross multiply
    28,266.60x = 39,013.74 × 19,766.46
  4. Step 4: Simplify right side
    28,266.60x = 771,163,531.16
  5. Step 5: Solve for x
    x = 771,163,531.16/28,266.60
  6. Step 6: Final answer
    x = 27,281.79

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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.