Home / 28,068.98-38,735.22-15,493.74

Finding the Fourth Proportional to 28,068.98, 38,735.22 and 15,493.74

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Solution

The fourth proportional to 28,068.98, 38,735.22 and 15,493.74 is: 21,381.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.98 : 38,735.22 = 15,493.74 : x
  2. Step 2: Convert to fraction form
    28,068.98/38,735.22 = 15,493.74/x
  3. Step 3: Cross multiply
    28,068.98x = 38,735.22 × 15,493.74
  4. Step 4: Simplify right side
    28,068.98x = 600,153,427.52
  5. Step 5: Solve for x
    x = 600,153,427.52/28,068.98
  6. Step 6: Final answer
    x = 21,381.38

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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.