Home / 38,706.26-53,411.48-21,708.18

Finding the Fourth Proportional to 38,706.26, 53,411.48 and 21,708.18

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Solution

The fourth proportional to 38,706.26, 53,411.48 and 21,708.18 is: 29,955.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,706.26 : 53,411.48 = 21,708.18 : x
  2. Step 2: Convert to fraction form
    38,706.26/53,411.48 = 21,708.18/x
  3. Step 3: Cross multiply
    38,706.26x = 53,411.48 × 21,708.18
  4. Step 4: Simplify right side
    38,706.26x = 1,159,465,783.50
  5. Step 5: Solve for x
    x = 1,159,465,783.50/38,706.26
  6. Step 6: Final answer
    x = 29,955.51

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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.