Home / 28,746.48-39,669.84-15,999.47

Finding the Fourth Proportional to 28,746.48, 39,669.84 and 15,999.47

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Solution

The fourth proportional to 28,746.48, 39,669.84 and 15,999.47 is: 22,079.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746.48 : 39,669.84 = 15,999.47 : x
  2. Step 2: Convert to fraction form
    28,746.48/39,669.84 = 15,999.47/x
  3. Step 3: Cross multiply
    28,746.48x = 39,669.84 × 15,999.47
  4. Step 4: Simplify right side
    28,746.48x = 634,696,633.54
  5. Step 5: Solve for x
    x = 634,696,633.54/28,746.48
  6. Step 6: Final answer
    x = 22,079.11

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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.