Home / 38,663.46-53,359.32-21,670.59

Finding the Fourth Proportional to 38,663.46, 53,359.32 and 21,670.59

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Solution

The fourth proportional to 38,663.46, 53,359.32 and 21,670.59 is: 29,907.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,663.46 : 53,359.32 = 21,670.59 : x
  2. Step 2: Convert to fraction form
    38,663.46/53,359.32 = 21,670.59/x
  3. Step 3: Cross multiply
    38,663.46x = 53,359.32 × 21,670.59
  4. Step 4: Simplify right side
    38,663.46x = 1,156,327,946.40
  5. Step 5: Solve for x
    x = 1,156,327,946.40/38,663.46
  6. Step 6: Final answer
    x = 29,907.51

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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.