Home / 38,315.64-52,873.68-21,320.88

Finding the Fourth Proportional to 38,315.64, 52,873.68 and 21,320.88

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Solution

The fourth proportional to 38,315.64, 52,873.68 and 21,320.88 is: 29,421.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,315.64 : 52,873.68 = 21,320.88 : x
  2. Step 2: Convert to fraction form
    38,315.64/52,873.68 = 21,320.88/x
  3. Step 3: Cross multiply
    38,315.64x = 52,873.68 × 21,320.88
  4. Step 4: Simplify right side
    38,315.64x = 1,127,313,386.44
  5. Step 5: Solve for x
    x = 1,127,313,386.44/38,315.64
  6. Step 6: Final answer
    x = 29,421.76

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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.