Home / 28,307.88-42,461.82-12,707.28

Finding the Fourth Proportional to 28,307.88, 42,461.82 and 12,707.28

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Solution

The fourth proportional to 28,307.88, 42,461.82 and 12,707.28 is: 19,060.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,307.88 : 42,461.82 = 12,707.28 : x
  2. Step 2: Convert to fraction form
    28,307.88/42,461.82 = 12,707.28/x
  3. Step 3: Cross multiply
    28,307.88x = 42,461.82 × 12,707.28
  4. Step 4: Simplify right side
    28,307.88x = 539,574,236.05
  5. Step 5: Solve for x
    x = 539,574,236.05/28,307.88
  6. Step 6: Final answer
    x = 19,060.92

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.