Home / 27,909.93-38,515.55-15,334.41

Finding the Fourth Proportional to 27,909.93, 38,515.55 and 15,334.41

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Solution

The fourth proportional to 27,909.93, 38,515.55 and 15,334.41 is: 21,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,909.93 : 38,515.55 = 15,334.41 : x
  2. Step 2: Convert to fraction form
    27,909.93/38,515.55 = 15,334.41/x
  3. Step 3: Cross multiply
    27,909.93x = 38,515.55 × 15,334.41
  4. Step 4: Simplify right side
    27,909.93x = 590,613,158.40
  5. Step 5: Solve for x
    x = 590,613,158.40/27,909.93
  6. Step 6: Final answer
    x = 21,161.40

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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.