Home / 28,947.96-43,427.70-12,307.86

Finding the Fourth Proportional to 28,947.96, 43,427.70 and 12,307.86

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Solution

The fourth proportional to 28,947.96, 43,427.70 and 12,307.86 is: 18,464.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,947.96 : 43,427.70 = 12,307.86 : x
  2. Step 2: Convert to fraction form
    28,947.96/43,427.70 = 12,307.86/x
  3. Step 3: Cross multiply
    28,947.96x = 43,427.70 × 12,307.86
  4. Step 4: Simplify right side
    28,947.96x = 534,502,051.72
  5. Step 5: Solve for x
    x = 534,502,051.72/28,947.96
  6. Step 6: Final answer
    x = 18,464.24

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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.