Home / 28,337.98-39,038.74-19,824.20

Finding the Fourth Proportional to 28,337.98, 39,038.74 and 19,824.20

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Solution

The fourth proportional to 28,337.98, 39,038.74 and 19,824.20 is: 27,310.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,337.98 : 39,038.74 = 19,824.20 : x
  2. Step 2: Convert to fraction form
    28,337.98/39,038.74 = 19,824.20/x
  3. Step 3: Cross multiply
    28,337.98x = 39,038.74 × 19,824.20
  4. Step 4: Simplify right side
    28,337.98x = 773,911,789.51
  5. Step 5: Solve for x
    x = 773,911,789.51/28,337.98
  6. Step 6: Final answer
    x = 27,310.05

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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.