Home / 28,746.24-39,656.70-20,775.84

Finding the Fourth Proportional to 28,746.24, 39,656.70 and 20,775.84

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Solution

The fourth proportional to 28,746.24, 39,656.70 and 20,775.84 is: 28,661.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746.24 : 39,656.70 = 20,775.84 : x
  2. Step 2: Convert to fraction form
    28,746.24/39,656.70 = 20,775.84/x
  3. Step 3: Cross multiply
    28,746.24x = 39,656.70 × 20,775.84
  4. Step 4: Simplify right side
    28,746.24x = 823,901,254.13
  5. Step 5: Solve for x
    x = 823,901,254.13/28,746.24
  6. Step 6: Final answer
    x = 28,661.18

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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.