Home / 27,645.70-38,151.06-15,070.45

Finding the Fourth Proportional to 27,645.70, 38,151.06 and 15,070.45

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Solution

The fourth proportional to 27,645.70, 38,151.06 and 15,070.45 is: 20,797.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.70 : 38,151.06 = 15,070.45 : x
  2. Step 2: Convert to fraction form
    27,645.70/38,151.06 = 15,070.45/x
  3. Step 3: Cross multiply
    27,645.70x = 38,151.06 × 15,070.45
  4. Step 4: Simplify right side
    27,645.70x = 574,953,642.18
  5. Step 5: Solve for x
    x = 574,953,642.18/27,645.70
  6. Step 6: Final answer
    x = 20,797.22

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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.