Home / 31,206.71-43,064.40-17,782.30

Finding the Fourth Proportional to 31,206.71, 43,064.40 and 17,782.30

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Solution

The fourth proportional to 31,206.71, 43,064.40 and 17,782.30 is: 24,539.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,206.71 : 43,064.40 = 17,782.30 : x
  2. Step 2: Convert to fraction form
    31,206.71/43,064.40 = 17,782.30/x
  3. Step 3: Cross multiply
    31,206.71x = 43,064.40 × 17,782.30
  4. Step 4: Simplify right side
    31,206.71x = 765,784,080.12
  5. Step 5: Solve for x
    x = 765,784,080.12/31,206.71
  6. Step 6: Final answer
    x = 24,539.08

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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.