Home / 19,983.87-29,994.21-10,130.13

Finding the Fourth Proportional to 19,983.87, 29,994.21 and 10,130.13

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Solution

The fourth proportional to 19,983.87, 29,994.21 and 10,130.13 is: 15,204.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.87 : 29,994.21 = 10,130.13 : x
  2. Step 2: Convert to fraction form
    19,983.87/29,994.21 = 10,130.13/x
  3. Step 3: Cross multiply
    19,983.87x = 29,994.21 × 10,130.13
  4. Step 4: Simplify right side
    19,983.87x = 303,845,246.55
  5. Step 5: Solve for x
    x = 303,845,246.55/19,983.87
  6. Step 6: Final answer
    x = 15,204.52

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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.