Home / 27,899.16-38,501.70-15,323.88

Finding the Fourth Proportional to 27,899.16, 38,501.70 and 15,323.88

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Solution

The fourth proportional to 27,899.16, 38,501.70 and 15,323.88 is: 21,147.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,899.16 : 38,501.70 = 15,323.88 : x
  2. Step 2: Convert to fraction form
    27,899.16/38,501.70 = 15,323.88/x
  3. Step 3: Cross multiply
    27,899.16x = 38,501.70 × 15,323.88
  4. Step 4: Simplify right side
    27,899.16x = 589,995,430.60
  5. Step 5: Solve for x
    x = 589,995,430.60/27,899.16
  6. Step 6: Final answer
    x = 21,147.43

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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.