Home / 31,370.15-43,271.76-18,614.93

Finding the Fourth Proportional to 31,370.15, 43,271.76 and 18,614.93

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Solution

The fourth proportional to 31,370.15, 43,271.76 and 18,614.93 is: 25,677.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,370.15 : 43,271.76 = 18,614.93 : x
  2. Step 2: Convert to fraction form
    31,370.15/43,271.76 = 18,614.93/x
  3. Step 3: Cross multiply
    31,370.15x = 43,271.76 × 18,614.93
  4. Step 4: Simplify right side
    31,370.15x = 805,500,567.02
  5. Step 5: Solve for x
    x = 805,500,567.02/31,370.15
  6. Step 6: Final answer
    x = 25,677.30

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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.