Home / 34,866.40-48,111.96-20,717.32

Finding the Fourth Proportional to 34,866.40, 48,111.96 and 20,717.32

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Solution

The fourth proportional to 34,866.40, 48,111.96 and 20,717.32 is: 28,587.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,866.40 : 48,111.96 = 20,717.32 : x
  2. Step 2: Convert to fraction form
    34,866.40/48,111.96 = 20,717.32/x
  3. Step 3: Cross multiply
    34,866.40x = 48,111.96 × 20,717.32
  4. Step 4: Simplify right side
    34,866.40x = 996,750,871.15
  5. Step 5: Solve for x
    x = 996,750,871.15/34,866.40
  6. Step 6: Final answer
    x = 28,587.72

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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.