Home / 28,047.03-42,107.28-19,730.97

Finding the Fourth Proportional to 28,047.03, 42,107.28 and 19,730.97

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Solution

The fourth proportional to 28,047.03, 42,107.28 and 19,730.97 is: 29,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.03 : 42,107.28 = 19,730.97 : x
  2. Step 2: Convert to fraction form
    28,047.03/42,107.28 = 19,730.97/x
  3. Step 3: Cross multiply
    28,047.03x = 42,107.28 × 19,730.97
  4. Step 4: Simplify right side
    28,047.03x = 830,817,478.46
  5. Step 5: Solve for x
    x = 830,817,478.46/28,047.03
  6. Step 6: Final answer
    x = 29,622.30

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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.