Home / 28,710.48-39,615.67-15,963.31

Finding the Fourth Proportional to 28,710.48, 39,615.67 and 15,963.31

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Solution

The fourth proportional to 28,710.48, 39,615.67 and 15,963.31 is: 22,026.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,710.48 : 39,615.67 = 15,963.31 : x
  2. Step 2: Convert to fraction form
    28,710.48/39,615.67 = 15,963.31/x
  3. Step 3: Cross multiply
    28,710.48x = 39,615.67 × 15,963.31
  4. Step 4: Simplify right side
    28,710.48x = 632,397,221.07
  5. Step 5: Solve for x
    x = 632,397,221.07/28,710.48
  6. Step 6: Final answer
    x = 22,026.70

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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.