Home / 31,726.68-43,782.30-17,386.40

Finding the Fourth Proportional to 31,726.68, 43,782.30 and 17,386.40

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Solution

The fourth proportional to 31,726.68, 43,782.30 and 17,386.40 is: 23,992.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,726.68 : 43,782.30 = 17,386.40 : x
  2. Step 2: Convert to fraction form
    31,726.68/43,782.30 = 17,386.40/x
  3. Step 3: Cross multiply
    31,726.68x = 43,782.30 × 17,386.40
  4. Step 4: Simplify right side
    31,726.68x = 761,216,580.72
  5. Step 5: Solve for x
    x = 761,216,580.72/31,726.68
  6. Step 6: Final answer
    x = 23,992.95

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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.