Home / 40,240.72-60,340.83-13,938.40

Finding the Fourth Proportional to 40,240.72, 60,340.83 and 13,938.40

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Solution

The fourth proportional to 40,240.72, 60,340.83 and 13,938.40 is: 20,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,240.72 : 60,340.83 = 13,938.40 : x
  2. Step 2: Convert to fraction form
    40,240.72/60,340.83 = 13,938.40/x
  3. Step 3: Cross multiply
    40,240.72x = 60,340.83 × 13,938.40
  4. Step 4: Simplify right side
    40,240.72x = 841,054,624.87
  5. Step 5: Solve for x
    x = 841,054,624.87/40,240.72
  6. Step 6: Final answer
    x = 20,900.59

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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.