Home / 26,355.12-36,353.40-18,394.40

Finding the Fourth Proportional to 26,355.12, 36,353.40 and 18,394.40

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Solution

The fourth proportional to 26,355.12, 36,353.40 and 18,394.40 is: 25,372.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,355.12 : 36,353.40 = 18,394.40 : x
  2. Step 2: Convert to fraction form
    26,355.12/36,353.40 = 18,394.40/x
  3. Step 3: Cross multiply
    26,355.12x = 36,353.40 × 18,394.40
  4. Step 4: Simplify right side
    26,355.12x = 668,698,980.96
  5. Step 5: Solve for x
    x = 668,698,980.96/26,355.12
  6. Step 6: Final answer
    x = 25,372.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.