Home / 28,173.02-38,878.80-15,597.50

Finding the Fourth Proportional to 28,173.02, 38,878.80 and 15,597.50

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Solution

The fourth proportional to 28,173.02, 38,878.80 and 15,597.50 is: 21,524.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.02 : 38,878.80 = 15,597.50 : x
  2. Step 2: Convert to fraction form
    28,173.02/38,878.80 = 15,597.50/x
  3. Step 3: Cross multiply
    28,173.02x = 38,878.80 × 15,597.50
  4. Step 4: Simplify right side
    28,173.02x = 606,412,083
  5. Step 5: Solve for x
    x = 606,412,083/28,173.02
  6. Step 6: Final answer
    x = 21,524.57

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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.