Home / 38,969.61-53,777.87-21,064.46

Finding the Fourth Proportional to 38,969.61, 53,777.87 and 21,064.46

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Solution

The fourth proportional to 38,969.61, 53,777.87 and 21,064.46 is: 29,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,969.61 : 53,777.87 = 21,064.46 : x
  2. Step 2: Convert to fraction form
    38,969.61/53,777.87 = 21,064.46/x
  3. Step 3: Cross multiply
    38,969.61x = 53,777.87 × 21,064.46
  4. Step 4: Simplify right side
    38,969.61x = 1,132,801,614.77
  5. Step 5: Solve for x
    x = 1,132,801,614.77/38,969.61
  6. Step 6: Final answer
    x = 29,068.85

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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.