Home / 22,260.69-30,720.58-12,702.13

Finding the Fourth Proportional to 22,260.69, 30,720.58 and 12,702.13

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Solution

The fourth proportional to 22,260.69, 30,720.58 and 12,702.13 is: 17,529.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,260.69 : 30,720.58 = 12,702.13 : x
  2. Step 2: Convert to fraction form
    22,260.69/30,720.58 = 12,702.13/x
  3. Step 3: Cross multiply
    22,260.69x = 30,720.58 × 12,702.13
  4. Step 4: Simplify right side
    22,260.69x = 390,216,737.32
  5. Step 5: Solve for x
    x = 390,216,737.32/22,260.69
  6. Step 6: Final answer
    x = 17,529.41

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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.