Home / 28,710.18-39,619.53-15,963.48

Finding the Fourth Proportional to 28,710.18, 39,619.53 and 15,963.48

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Solution

The fourth proportional to 28,710.18, 39,619.53 and 15,963.48 is: 22,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,710.18 : 39,619.53 = 15,963.48 : x
  2. Step 2: Convert to fraction form
    28,710.18/39,619.53 = 15,963.48/x
  3. Step 3: Cross multiply
    28,710.18x = 39,619.53 × 15,963.48
  4. Step 4: Simplify right side
    28,710.18x = 632,465,574.76
  5. Step 5: Solve for x
    x = 632,465,574.76/28,710.18
  6. Step 6: Final answer
    x = 22,029.31

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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.