Home / 28,427.40-42,554.70-16,705.80

Finding the Fourth Proportional to 28,427.40, 42,554.70 and 16,705.80

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Solution

The fourth proportional to 28,427.40, 42,554.70 and 16,705.80 is: 25,007.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,427.40 : 42,554.70 = 16,705.80 : x
  2. Step 2: Convert to fraction form
    28,427.40/42,554.70 = 16,705.80/x
  3. Step 3: Cross multiply
    28,427.40x = 42,554.70 × 16,705.80
  4. Step 4: Simplify right side
    28,427.40x = 710,910,307.26
  5. Step 5: Solve for x
    x = 710,910,307.26/28,427.40
  6. Step 6: Final answer
    x = 25,007.93

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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.