Home / 38,391.49-52,981.89-21,395.76

Finding the Fourth Proportional to 38,391.49, 52,981.89 and 21,395.76

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Solution

The fourth proportional to 38,391.49, 52,981.89 and 21,395.76 is: 29,527.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,391.49 : 52,981.89 = 21,395.76 : x
  2. Step 2: Convert to fraction form
    38,391.49/52,981.89 = 21,395.76/x
  3. Step 3: Cross multiply
    38,391.49x = 52,981.89 × 21,395.76
  4. Step 4: Simplify right side
    38,391.49x = 1,133,587,802.79
  5. Step 5: Solve for x
    x = 1,133,587,802.79/38,391.49
  6. Step 6: Final answer
    x = 29,527.06

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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.