Home / 38,389.18-52,976.18-21,393.34

Finding the Fourth Proportional to 38,389.18, 52,976.18 and 21,393.34

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Solution

The fourth proportional to 38,389.18, 52,976.18 and 21,393.34 is: 29,522.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,389.18 : 52,976.18 = 21,393.34 : x
  2. Step 2: Convert to fraction form
    38,389.18/52,976.18 = 21,393.34/x
  3. Step 3: Cross multiply
    38,389.18x = 52,976.18 × 21,393.34
  4. Step 4: Simplify right side
    38,389.18x = 1,133,337,430.64
  5. Step 5: Solve for x
    x = 1,133,337,430.64/38,389.18
  6. Step 6: Final answer
    x = 29,522.31

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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.