Home / 31,392.60-43,303.70-18,810.06

Finding the Fourth Proportional to 31,392.60, 43,303.70 and 18,810.06

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Solution

The fourth proportional to 31,392.60, 43,303.70 and 18,810.06 is: 25,947.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,392.60 : 43,303.70 = 18,810.06 : x
  2. Step 2: Convert to fraction form
    31,392.60/43,303.70 = 18,810.06/x
  3. Step 3: Cross multiply
    31,392.60x = 43,303.70 × 18,810.06
  4. Step 4: Simplify right side
    31,392.60x = 814,545,195.22
  5. Step 5: Solve for x
    x = 814,545,195.22/31,392.60
  6. Step 6: Final answer
    x = 25,947.04

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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.