Home / 28,820.03-39,775.20-16,887.92

Finding the Fourth Proportional to 28,820.03, 39,775.20 and 16,887.92

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Solution

The fourth proportional to 28,820.03, 39,775.20 and 16,887.92 is: 23,307.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.03 : 39,775.20 = 16,887.92 : x
  2. Step 2: Convert to fraction form
    28,820.03/39,775.20 = 16,887.92/x
  3. Step 3: Cross multiply
    28,820.03x = 39,775.20 × 16,887.92
  4. Step 4: Simplify right side
    28,820.03x = 671,720,395.58
  5. Step 5: Solve for x
    x = 671,720,395.58/28,820.03
  6. Step 6: Final answer
    x = 23,307.41

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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.