Home / 28,279.17-39,023.49-16,340.58

Finding the Fourth Proportional to 28,279.17, 39,023.49 and 16,340.58

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Solution

The fourth proportional to 28,279.17, 39,023.49 and 16,340.58 is: 22,548.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.17 : 39,023.49 = 16,340.58 : x
  2. Step 2: Convert to fraction form
    28,279.17/39,023.49 = 16,340.58/x
  3. Step 3: Cross multiply
    28,279.17x = 39,023.49 × 16,340.58
  4. Step 4: Simplify right side
    28,279.17x = 637,666,460.22
  5. Step 5: Solve for x
    x = 637,666,460.22/28,279.17
  6. Step 6: Final answer
    x = 22,548.98

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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.