Home / 27,157.48-40,775.10-20,159.08

Finding the Fourth Proportional to 27,157.48, 40,775.10 and 20,159.08

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Solution

The fourth proportional to 27,157.48, 40,775.10 and 20,159.08 is: 30,267.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,157.48 : 40,775.10 = 20,159.08 : x
  2. Step 2: Convert to fraction form
    27,157.48/40,775.10 = 20,159.08/x
  3. Step 3: Cross multiply
    27,157.48x = 40,775.10 × 20,159.08
  4. Step 4: Simplify right side
    27,157.48x = 821,988,502.91
  5. Step 5: Solve for x
    x = 821,988,502.91/27,157.48
  6. Step 6: Final answer
    x = 30,267.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.