Home / 27,430.88-37,853.28-15,329.28

Finding the Fourth Proportional to 27,430.88, 37,853.28 and 15,329.28

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Solution

The fourth proportional to 27,430.88, 37,853.28 and 15,329.28 is: 21,153.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,430.88 : 37,853.28 = 15,329.28 : x
  2. Step 2: Convert to fraction form
    27,430.88/37,853.28 = 15,329.28/x
  3. Step 3: Cross multiply
    27,430.88x = 37,853.28 × 15,329.28
  4. Step 4: Simplify right side
    27,430.88x = 580,263,528.04
  5. Step 5: Solve for x
    x = 580,263,528.04/27,430.88
  6. Step 6: Final answer
    x = 21,153.66

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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.