Home / 27,963.99-38,590.70-15,389.01

Finding the Fourth Proportional to 27,963.99, 38,590.70 and 15,389.01

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Solution

The fourth proportional to 27,963.99, 38,590.70 and 15,389.01 is: 21,237.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,963.99 : 38,590.70 = 15,389.01 : x
  2. Step 2: Convert to fraction form
    27,963.99/38,590.70 = 15,389.01/x
  3. Step 3: Cross multiply
    27,963.99x = 38,590.70 × 15,389.01
  4. Step 4: Simplify right side
    27,963.99x = 593,872,591.26
  5. Step 5: Solve for x
    x = 593,872,591.26/27,963.99
  6. Step 6: Final answer
    x = 21,237.05

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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.