Home / 28,710.36-39,615.50-15,963.18

Finding the Fourth Proportional to 28,710.36, 39,615.50 and 15,963.18

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Solution

The fourth proportional to 28,710.36, 39,615.50 and 15,963.18 is: 22,026.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,710.36 : 39,615.50 = 15,963.18 : x
  2. Step 2: Convert to fraction form
    28,710.36/39,615.50 = 15,963.18/x
  3. Step 3: Cross multiply
    28,710.36x = 39,615.50 × 15,963.18
  4. Step 4: Simplify right side
    28,710.36x = 632,389,357.29
  5. Step 5: Solve for x
    x = 632,389,357.29/28,710.36
  6. Step 6: Final answer
    x = 22,026.52

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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.