Home / 43,856.64-65,784.96-15,780.42

Finding the Fourth Proportional to 43,856.64, 65,784.96 and 15,780.42

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Solution

The fourth proportional to 43,856.64, 65,784.96 and 15,780.42 is: 23,670.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,856.64 : 65,784.96 = 15,780.42 : x
  2. Step 2: Convert to fraction form
    43,856.64/65,784.96 = 15,780.42/x
  3. Step 3: Cross multiply
    43,856.64x = 65,784.96 × 15,780.42
  4. Step 4: Simplify right side
    43,856.64x = 1,038,114,298.48
  5. Step 5: Solve for x
    x = 1,038,114,298.48/43,856.64
  6. Step 6: Final answer
    x = 23,670.63

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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.