Home / 28,742.85-43,111.58-12,948.93

Finding the Fourth Proportional to 28,742.85, 43,111.58 and 12,948.93

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Solution

The fourth proportional to 28,742.85, 43,111.58 and 12,948.93 is: 19,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.85 : 43,111.58 = 12,948.93 : x
  2. Step 2: Convert to fraction form
    28,742.85/43,111.58 = 12,948.93/x
  3. Step 3: Cross multiply
    28,742.85x = 43,111.58 × 12,948.93
  4. Step 4: Simplify right side
    28,742.85x = 558,248,766.86
  5. Step 5: Solve for x
    x = 558,248,766.86/28,742.85
  6. Step 6: Final answer
    x = 19,422.18

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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.