Home / 43,260.90-64,890.96-13,678.75

Finding the Fourth Proportional to 43,260.90, 64,890.96 and 13,678.75

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Solution

The fourth proportional to 43,260.90, 64,890.96 and 13,678.75 is: 20,518.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,260.90 : 64,890.96 = 13,678.75 : x
  2. Step 2: Convert to fraction form
    43,260.90/64,890.96 = 13,678.75/x
  3. Step 3: Cross multiply
    43,260.90x = 64,890.96 × 13,678.75
  4. Step 4: Simplify right side
    43,260.90x = 887,627,248.92
  5. Step 5: Solve for x
    x = 887,627,248.92/43,260.90
  6. Step 6: Final answer
    x = 20,518.00

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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.