Home / 38,969.16-53,777.48-21,064.17

Finding the Fourth Proportional to 38,969.16, 53,777.48 and 21,064.17

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Solution

The fourth proportional to 38,969.16, 53,777.48 and 21,064.17 is: 29,068.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,969.16 : 53,777.48 = 21,064.17 : x
  2. Step 2: Convert to fraction form
    38,969.16/53,777.48 = 21,064.17/x
  3. Step 3: Cross multiply
    38,969.16x = 53,777.48 × 21,064.17
  4. Step 4: Simplify right side
    38,969.16x = 1,132,777,980.89
  5. Step 5: Solve for x
    x = 1,132,777,980.89/38,969.16
  6. Step 6: Final answer
    x = 29,068.58

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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.