Home / 34,886.32-48,145.22-20,555.70

Finding the Fourth Proportional to 34,886.32, 48,145.22 and 20,555.70

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Solution

The fourth proportional to 34,886.32, 48,145.22 and 20,555.70 is: 28,368.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,886.32 : 48,145.22 = 20,555.70 : x
  2. Step 2: Convert to fraction form
    34,886.32/48,145.22 = 20,555.70/x
  3. Step 3: Cross multiply
    34,886.32x = 48,145.22 × 20,555.70
  4. Step 4: Simplify right side
    34,886.32x = 989,658,698.75
  5. Step 5: Solve for x
    x = 989,658,698.75/34,886.32
  6. Step 6: Final answer
    x = 28,368.10

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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.