Home / 27,159.52-40,739.46-10,521.40

Finding the Fourth Proportional to 27,159.52, 40,739.46 and 10,521.40

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Solution

The fourth proportional to 27,159.52, 40,739.46 and 10,521.40 is: 15,782.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,159.52 : 40,739.46 = 10,521.40 : x
  2. Step 2: Convert to fraction form
    27,159.52/40,739.46 = 10,521.40/x
  3. Step 3: Cross multiply
    27,159.52x = 40,739.46 × 10,521.40
  4. Step 4: Simplify right side
    27,159.52x = 428,636,154.44
  5. Step 5: Solve for x
    x = 428,636,154.44/27,159.52
  6. Step 6: Final answer
    x = 15,782.17

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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.