Home / 28,972.20-39,973.74-17,031.24

Finding the Fourth Proportional to 28,972.20, 39,973.74 and 17,031.24

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Solution

The fourth proportional to 28,972.20, 39,973.74 and 17,031.24 is: 23,498.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.20 : 39,973.74 = 17,031.24 : x
  2. Step 2: Convert to fraction form
    28,972.20/39,973.74 = 17,031.24/x
  3. Step 3: Cross multiply
    28,972.20x = 39,973.74 × 17,031.24
  4. Step 4: Simplify right side
    28,972.20x = 680,802,359.64
  5. Step 5: Solve for x
    x = 680,802,359.64/28,972.20
  6. Step 6: Final answer
    x = 23,498.47

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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.