Home / 28,714.77-39,628.19-15,970.79

Finding the Fourth Proportional to 28,714.77, 39,628.19 and 15,970.79

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Solution

The fourth proportional to 28,714.77, 39,628.19 and 15,970.79 is: 22,040.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,714.77 : 39,628.19 = 15,970.79 : x
  2. Step 2: Convert to fraction form
    28,714.77/39,628.19 = 15,970.79/x
  3. Step 3: Cross multiply
    28,714.77x = 39,628.19 × 15,970.79
  4. Step 4: Simplify right side
    28,714.77x = 632,893,222.58
  5. Step 5: Solve for x
    x = 632,893,222.58/28,714.77
  6. Step 6: Final answer
    x = 22,040.69

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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.