Home / 28,585.79-42,893.33-13,609.86

Finding the Fourth Proportional to 28,585.79, 42,893.33 and 13,609.86

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Solution

The fourth proportional to 28,585.79, 42,893.33 and 13,609.86 is: 20,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,585.79 : 42,893.33 = 13,609.86 : x
  2. Step 2: Convert to fraction form
    28,585.79/42,893.33 = 13,609.86/x
  3. Step 3: Cross multiply
    28,585.79x = 42,893.33 × 13,609.86
  4. Step 4: Simplify right side
    28,585.79x = 583,772,216.23
  5. Step 5: Solve for x
    x = 583,772,216.23/28,585.79
  6. Step 6: Final answer
    x = 20,421.76

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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.