Home / 28,445.96-42,667.34-8,724.46

Finding the Fourth Proportional to 28,445.96, 42,667.34 and 8,724.46

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Solution

The fourth proportional to 28,445.96, 42,667.34 and 8,724.46 is: 13,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.96 : 42,667.34 = 8,724.46 : x
  2. Step 2: Convert to fraction form
    28,445.96/42,667.34 = 8,724.46/x
  3. Step 3: Cross multiply
    28,445.96x = 42,667.34 × 8,724.46
  4. Step 4: Simplify right side
    28,445.96x = 372,249,501.14
  5. Step 5: Solve for x
    x = 372,249,501.14/28,445.96
  6. Step 6: Final answer
    x = 13,086.20

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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.