Home / 28,650.64-42,975.40-11,779.96

Finding the Fourth Proportional to 28,650.64, 42,975.40 and 11,779.96

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Solution

The fourth proportional to 28,650.64, 42,975.40 and 11,779.96 is: 17,669.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,650.64 : 42,975.40 = 11,779.96 : x
  2. Step 2: Convert to fraction form
    28,650.64/42,975.40 = 11,779.96/x
  3. Step 3: Cross multiply
    28,650.64x = 42,975.40 × 11,779.96
  4. Step 4: Simplify right side
    28,650.64x = 506,248,492.98
  5. Step 5: Solve for x
    x = 506,248,492.98/28,650.64
  6. Step 6: Final answer
    x = 17,669.71

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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.