Home / 38,385.77-52,971.54-21,389.94

Finding the Fourth Proportional to 38,385.77, 52,971.54 and 21,389.94

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Solution

The fourth proportional to 38,385.77, 52,971.54 and 21,389.94 is: 29,517.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,385.77 : 52,971.54 = 21,389.94 : x
  2. Step 2: Convert to fraction form
    38,385.77/52,971.54 = 21,389.94/x
  3. Step 3: Cross multiply
    38,385.77x = 52,971.54 × 21,389.94
  4. Step 4: Simplify right side
    38,385.77x = 1,133,058,062.31
  5. Step 5: Solve for x
    x = 1,133,058,062.31/38,385.77
  6. Step 6: Final answer
    x = 29,517.66

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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.