Home / 19,710.20-27,190.65-13,339.02

Finding the Fourth Proportional to 19,710.20, 27,190.65 and 13,339.02

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Solution

The fourth proportional to 19,710.20, 27,190.65 and 13,339.02 is: 18,401.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,710.20 : 27,190.65 = 13,339.02 : x
  2. Step 2: Convert to fraction form
    19,710.20/27,190.65 = 13,339.02/x
  3. Step 3: Cross multiply
    19,710.20x = 27,190.65 × 13,339.02
  4. Step 4: Simplify right side
    19,710.20x = 362,696,624.16
  5. Step 5: Solve for x
    x = 362,696,624.16/19,710.20
  6. Step 6: Final answer
    x = 18,401.47

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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.