Home / 21,045.62-31,527.93-13,151.24

Finding the Fourth Proportional to 21,045.62, 31,527.93 and 13,151.24

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Solution

The fourth proportional to 21,045.62, 31,527.93 and 13,151.24 is: 19,701.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.62 : 31,527.93 = 13,151.24 : x
  2. Step 2: Convert to fraction form
    21,045.62/31,527.93 = 13,151.24/x
  3. Step 3: Cross multiply
    21,045.62x = 31,527.93 × 13,151.24
  4. Step 4: Simplify right side
    21,045.62x = 414,631,216.49
  5. Step 5: Solve for x
    x = 414,631,216.49/21,045.62
  6. Step 6: Final answer
    x = 19,701.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.