Home / 38,487.08-57,709.98-19,759.40

Finding the Fourth Proportional to 38,487.08, 57,709.98 and 19,759.40

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Solution

The fourth proportional to 38,487.08, 57,709.98 and 19,759.40 is: 29,628.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,487.08 : 57,709.98 = 19,759.40 : x
  2. Step 2: Convert to fraction form
    38,487.08/57,709.98 = 19,759.40/x
  3. Step 3: Cross multiply
    38,487.08x = 57,709.98 × 19,759.40
  4. Step 4: Simplify right side
    38,487.08x = 1,140,314,578.81
  5. Step 5: Solve for x
    x = 1,140,314,578.81/38,487.08
  6. Step 6: Final answer
    x = 29,628.50

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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.