Home / 31,769.37-43,822.67-21,014.51

Finding the Fourth Proportional to 31,769.37, 43,822.67 and 21,014.51

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Solution

The fourth proportional to 31,769.37, 43,822.67 and 21,014.51 is: 28,987.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,769.37 : 43,822.67 = 21,014.51 : x
  2. Step 2: Convert to fraction form
    31,769.37/43,822.67 = 21,014.51/x
  3. Step 3: Cross multiply
    31,769.37x = 43,822.67 × 21,014.51
  4. Step 4: Simplify right side
    31,769.37x = 920,911,612.76
  5. Step 5: Solve for x
    x = 920,911,612.76/31,769.37
  6. Step 6: Final answer
    x = 28,987.41

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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.