Home / 22,386.19-30,893.67-12,315.40

Finding the Fourth Proportional to 22,386.19, 30,893.67 and 12,315.40

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Solution

The fourth proportional to 22,386.19, 30,893.67 and 12,315.40 is: 16,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,386.19 : 30,893.67 = 12,315.40 : x
  2. Step 2: Convert to fraction form
    22,386.19/30,893.67 = 12,315.40/x
  3. Step 3: Cross multiply
    22,386.19x = 30,893.67 × 12,315.40
  4. Step 4: Simplify right side
    22,386.19x = 380,467,903.52
  5. Step 5: Solve for x
    x = 380,467,903.52/22,386.19
  6. Step 6: Final answer
    x = 16,995.65

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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.