Home / 39,810.34-59,722.85-13,157.65

Finding the Fourth Proportional to 39,810.34, 59,722.85 and 13,157.65

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Solution

The fourth proportional to 39,810.34, 59,722.85 and 13,157.65 is: 19,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,810.34 : 59,722.85 = 13,157.65 : x
  2. Step 2: Convert to fraction form
    39,810.34/59,722.85 = 13,157.65/x
  3. Step 3: Cross multiply
    39,810.34x = 59,722.85 × 13,157.65
  4. Step 4: Simplify right side
    39,810.34x = 785,812,357.30
  5. Step 5: Solve for x
    x = 785,812,357.30/39,810.34
  6. Step 6: Final answer
    x = 19,738.90

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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.