Home / 28,012,517.12-38,657,273.70-15,135,461.12

Finding the Fourth Proportional to 28,012,517.12, 38,657,273.70 and 15,135,461.12

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Solution

The fourth proportional to 28,012,517.12, 38,657,273.70 and 15,135,461.12 is: 20,886,936.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012,517.12 : 38,657,273.70 = 15,135,461.12 : x
  2. Step 2: Convert to fraction form
    28,012,517.12/38,657,273.70 = 15,135,461.12/x
  3. Step 3: Cross multiply
    28,012,517.12x = 38,657,273.70 × 15,135,461.12
  4. Step 4: Simplify right side
    28,012,517.12x = 585,095,663,091,548.50
  5. Step 5: Solve for x
    x = 585,095,663,091,548.50/28,012,517.12
  6. Step 6: Final answer
    x = 20,886,936.39

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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.