Home / 22,980.67-31,707.74-13,415.09

Finding the Fourth Proportional to 22,980.67, 31,707.74 and 13,415.09

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Solution

The fourth proportional to 22,980.67, 31,707.74 and 13,415.09 is: 18,509.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,980.67 : 31,707.74 = 13,415.09 : x
  2. Step 2: Convert to fraction form
    22,980.67/31,707.74 = 13,415.09/x
  3. Step 3: Cross multiply
    22,980.67x = 31,707.74 × 13,415.09
  4. Step 4: Simplify right side
    22,980.67x = 425,362,060.80
  5. Step 5: Solve for x
    x = 425,362,060.80/22,980.67
  6. Step 6: Final answer
    x = 18,509.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.