Home / 31,870.14-43,980.21-17,722.86

Finding the Fourth Proportional to 31,870.14, 43,980.21 and 17,722.86

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Solution

The fourth proportional to 31,870.14, 43,980.21 and 17,722.86 is: 24,457.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,870.14 : 43,980.21 = 17,722.86 : x
  2. Step 2: Convert to fraction form
    31,870.14/43,980.21 = 17,722.86/x
  3. Step 3: Cross multiply
    31,870.14x = 43,980.21 × 17,722.86
  4. Step 4: Simplify right side
    31,870.14x = 779,455,104.60
  5. Step 5: Solve for x
    x = 779,455,104.60/31,870.14
  6. Step 6: Final answer
    x = 24,457.22

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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.