Home / 28,088.06-38,761.51-15,512.70

Finding the Fourth Proportional to 28,088.06, 38,761.51 and 15,512.70

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Solution

The fourth proportional to 28,088.06, 38,761.51 and 15,512.70 is: 21,407.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088.06 : 38,761.51 = 15,512.70 : x
  2. Step 2: Convert to fraction form
    28,088.06/38,761.51 = 15,512.70/x
  3. Step 3: Cross multiply
    28,088.06x = 38,761.51 × 15,512.70
  4. Step 4: Simplify right side
    28,088.06x = 601,295,676.18
  5. Step 5: Solve for x
    x = 601,295,676.18/28,088.06
  6. Step 6: Final answer
    x = 21,407.52

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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.