Home / 53,215.17-79,824.45-19,928.91

Finding the Fourth Proportional to 53,215.17, 79,824.45 and 19,928.91

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Solution

The fourth proportional to 53,215.17, 79,824.45 and 19,928.91 is: 29,894.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,215.17 : 79,824.45 = 19,928.91 : x
  2. Step 2: Convert to fraction form
    53,215.17/79,824.45 = 19,928.91/x
  3. Step 3: Cross multiply
    53,215.17x = 79,824.45 × 19,928.91
  4. Step 4: Simplify right side
    53,215.17x = 1,590,814,279.85
  5. Step 5: Solve for x
    x = 1,590,814,279.85/53,215.17
  6. Step 6: Final answer
    x = 29,894.00

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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.