Home / 27,808.02-38,344.32-17,720.49

Finding the Fourth Proportional to 27,808.02, 38,344.32 and 17,720.49

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Solution

The fourth proportional to 27,808.02, 38,344.32 and 17,720.49 is: 24,434.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,808.02 : 38,344.32 = 17,720.49 : x
  2. Step 2: Convert to fraction form
    27,808.02/38,344.32 = 17,720.49/x
  3. Step 3: Cross multiply
    27,808.02x = 38,344.32 × 17,720.49
  4. Step 4: Simplify right side
    27,808.02x = 679,480,139.12
  5. Step 5: Solve for x
    x = 679,480,139.12/27,808.02
  6. Step 6: Final answer
    x = 24,434.68

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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.