Home / 28,076.86-38,746.25-15,501.61

Finding the Fourth Proportional to 28,076.86, 38,746.25 and 15,501.61

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Solution

The fourth proportional to 28,076.86, 38,746.25 and 15,501.61 is: 21,392.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.86 : 38,746.25 = 15,501.61 : x
  2. Step 2: Convert to fraction form
    28,076.86/38,746.25 = 15,501.61/x
  3. Step 3: Cross multiply
    28,076.86x = 38,746.25 × 15,501.61
  4. Step 4: Simplify right side
    28,076.86x = 600,629,256.46
  5. Step 5: Solve for x
    x = 600,629,256.46/28,076.86
  6. Step 6: Final answer
    x = 21,392.32

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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.