Home / 31,420.03-43,359.65-17,995.74

Finding the Fourth Proportional to 31,420.03, 43,359.65 and 17,995.74

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Solution

The fourth proportional to 31,420.03, 43,359.65 and 17,995.74 is: 24,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,420.03 : 43,359.65 = 17,995.74 : x
  2. Step 2: Convert to fraction form
    31,420.03/43,359.65 = 17,995.74/x
  3. Step 3: Cross multiply
    31,420.03x = 43,359.65 × 17,995.74
  4. Step 4: Simplify right side
    31,420.03x = 780,288,987.89
  5. Step 5: Solve for x
    x = 780,288,987.89/31,420.03
  6. Step 6: Final answer
    x = 24,834.13

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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.