Home / 28,746.18-39,670.87-15,999.89

Finding the Fourth Proportional to 28,746.18, 39,670.87 and 15,999.89

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Solution

The fourth proportional to 28,746.18, 39,670.87 and 15,999.89 is: 22,080.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746.18 : 39,670.87 = 15,999.89 : x
  2. Step 2: Convert to fraction form
    28,746.18/39,670.87 = 15,999.89/x
  3. Step 3: Cross multiply
    28,746.18x = 39,670.87 × 15,999.89
  4. Step 4: Simplify right side
    28,746.18x = 634,729,476.20
  5. Step 5: Solve for x
    x = 634,729,476.20/28,746.18
  6. Step 6: Final answer
    x = 22,080.48

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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.