Home / 38,700.46-53,407.22-21,708.47

Finding the Fourth Proportional to 38,700.46, 53,407.22 and 21,708.47

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Solution

The fourth proportional to 38,700.46, 53,407.22 and 21,708.47 is: 29,958.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,700.46 : 53,407.22 = 21,708.47 : x
  2. Step 2: Convert to fraction form
    38,700.46/53,407.22 = 21,708.47/x
  3. Step 3: Cross multiply
    38,700.46x = 53,407.22 × 21,708.47
  4. Step 4: Simplify right side
    38,700.46x = 1,159,388,924.61
  5. Step 5: Solve for x
    x = 1,159,388,924.61/38,700.46
  6. Step 6: Final answer
    x = 29,958.02

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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.