Home / 19,439.04-26,821.10-10,939.50

Finding the Fourth Proportional to 19,439.04, 26,821.10 and 10,939.50

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Solution

The fourth proportional to 19,439.04, 26,821.10 and 10,939.50 is: 15,093.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,439.04 : 26,821.10 = 10,939.50 : x
  2. Step 2: Convert to fraction form
    19,439.04/26,821.10 = 10,939.50/x
  3. Step 3: Cross multiply
    19,439.04x = 26,821.10 × 10,939.50
  4. Step 4: Simplify right side
    19,439.04x = 293,409,423.45
  5. Step 5: Solve for x
    x = 293,409,423.45/19,439.04
  6. Step 6: Final answer
    x = 15,093.82

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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.