Home / 27,782.13-38,339.04-15,035.01

Finding the Fourth Proportional to 27,782.13, 38,339.04 and 15,035.01

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Solution

The fourth proportional to 27,782.13, 38,339.04 and 15,035.01 is: 20,748.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,782.13 : 38,339.04 = 15,035.01 : x
  2. Step 2: Convert to fraction form
    27,782.13/38,339.04 = 15,035.01/x
  3. Step 3: Cross multiply
    27,782.13x = 38,339.04 × 15,035.01
  4. Step 4: Simplify right side
    27,782.13x = 576,427,849.79
  5. Step 5: Solve for x
    x = 576,427,849.79/27,782.13
  6. Step 6: Final answer
    x = 20,748.15

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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.