Home / 27,581.45-38,066.63-15,642.25

Finding the Fourth Proportional to 27,581.45, 38,066.63 and 15,642.25

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Solution

The fourth proportional to 27,581.45, 38,066.63 and 15,642.25 is: 21,588.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,581.45 : 38,066.63 = 15,642.25 : x
  2. Step 2: Convert to fraction form
    27,581.45/38,066.63 = 15,642.25/x
  3. Step 3: Cross multiply
    27,581.45x = 38,066.63 × 15,642.25
  4. Step 4: Simplify right side
    27,581.45x = 595,447,569.74
  5. Step 5: Solve for x
    x = 595,447,569.74/27,581.45
  6. Step 6: Final answer
    x = 21,588.70

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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.