Home / 31,681.04-43,719.70-18,254.69

Finding the Fourth Proportional to 31,681.04, 43,719.70 and 18,254.69

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Solution

The fourth proportional to 31,681.04, 43,719.70 and 18,254.69 is: 25,191.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,681.04 : 43,719.70 = 18,254.69 : x
  2. Step 2: Convert to fraction form
    31,681.04/43,719.70 = 18,254.69/x
  3. Step 3: Cross multiply
    31,681.04x = 43,719.70 × 18,254.69
  4. Step 4: Simplify right side
    31,681.04x = 798,089,260.52
  5. Step 5: Solve for x
    x = 798,089,260.52/31,681.04
  6. Step 6: Final answer
    x = 25,191.38

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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.