Home / 28,646.76-42,999.28-20,336.16

Finding the Fourth Proportional to 28,646.76, 42,999.28 and 20,336.16

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Solution

The fourth proportional to 28,646.76, 42,999.28 and 20,336.16 is: 30,524.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,646.76 : 42,999.28 = 20,336.16 : x
  2. Step 2: Convert to fraction form
    28,646.76/42,999.28 = 20,336.16/x
  3. Step 3: Cross multiply
    28,646.76x = 42,999.28 × 20,336.16
  4. Step 4: Simplify right side
    28,646.76x = 874,440,237.96
  5. Step 5: Solve for x
    x = 874,440,237.96/28,646.76
  6. Step 6: Final answer
    x = 30,524.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.