Home / 40,980.26-61,478.55-12,907.40

Finding the Fourth Proportional to 40,980.26, 61,478.55 and 12,907.40

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Solution

The fourth proportional to 40,980.26, 61,478.55 and 12,907.40 is: 19,363.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,980.26 : 61,478.55 = 12,907.40 : x
  2. Step 2: Convert to fraction form
    40,980.26/61,478.55 = 12,907.40/x
  3. Step 3: Cross multiply
    40,980.26x = 61,478.55 × 12,907.40
  4. Step 4: Simplify right side
    40,980.26x = 793,527,928.88
  5. Step 5: Solve for x
    x = 793,527,928.88/40,980.26
  6. Step 6: Final answer
    x = 19,363.66

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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.