Home / 27,953.53-38,575.74-15,521.57

Finding the Fourth Proportional to 27,953.53, 38,575.74 and 15,521.57

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Solution

The fourth proportional to 27,953.53, 38,575.74 and 15,521.57 is: 21,419.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,953.53 : 38,575.74 = 15,521.57 : x
  2. Step 2: Convert to fraction form
    27,953.53/38,575.74 = 15,521.57/x
  3. Step 3: Cross multiply
    27,953.53x = 38,575.74 × 15,521.57
  4. Step 4: Simplify right side
    27,953.53x = 598,756,048.71
  5. Step 5: Solve for x
    x = 598,756,048.71/27,953.53
  6. Step 6: Final answer
    x = 21,419.69

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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.