Home / 19,029.40-26,262.32-12,318.28

Finding the Fourth Proportional to 19,029.40, 26,262.32 and 12,318.28

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Solution

The fourth proportional to 19,029.40, 26,262.32 and 12,318.28 is: 17,000.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,029.40 : 26,262.32 = 12,318.28 : x
  2. Step 2: Convert to fraction form
    19,029.40/26,262.32 = 12,318.28/x
  3. Step 3: Cross multiply
    19,029.40x = 26,262.32 × 12,318.28
  4. Step 4: Simplify right side
    19,029.40x = 323,506,611.21
  5. Step 5: Solve for x
    x = 323,506,611.21/19,029.40
  6. Step 6: Final answer
    x = 17,000.36

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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.