Home / 28,075.61-38,698.21-19,902.00

Finding the Fourth Proportional to 28,075.61, 38,698.21 and 19,902.00

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Solution

The fourth proportional to 28,075.61, 38,698.21 and 19,902.00 is: 27,432.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.61 : 38,698.21 = 19,902.00 : x
  2. Step 2: Convert to fraction form
    28,075.61/38,698.21 = 19,902.00/x
  3. Step 3: Cross multiply
    28,075.61x = 38,698.21 × 19,902.00
  4. Step 4: Simplify right side
    28,075.61x = 770,171,833.47
  5. Step 5: Solve for x
    x = 770,171,833.47/28,075.61
  6. Step 6: Final answer
    x = 27,432.06

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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.