Home / 28,746.98-39,670.54-15,999.98

Finding the Fourth Proportional to 28,746.98, 39,670.54 and 15,999.98

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Solution

The fourth proportional to 28,746.98, 39,670.54 and 15,999.98 is: 22,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746.98 : 39,670.54 = 15,999.98 : x
  2. Step 2: Convert to fraction form
    28,746.98/39,670.54 = 15,999.98/x
  3. Step 3: Cross multiply
    28,746.98x = 39,670.54 × 15,999.98
  4. Step 4: Simplify right side
    28,746.98x = 634,727,568.24
  5. Step 5: Solve for x
    x = 634,727,568.24/28,746.98
  6. Step 6: Final answer
    x = 22,079.80

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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.