Home / 22,210.63-30,641.50-15,500.15

Finding the Fourth Proportional to 22,210.63, 30,641.50 and 15,500.15

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Solution

The fourth proportional to 22,210.63, 30,641.50 and 15,500.15 is: 21,383.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.63 : 30,641.50 = 15,500.15 : x
  2. Step 2: Convert to fraction form
    22,210.63/30,641.50 = 15,500.15/x
  3. Step 3: Cross multiply
    22,210.63x = 30,641.50 × 15,500.15
  4. Step 4: Simplify right side
    22,210.63x = 474,947,693.02
  5. Step 5: Solve for x
    x = 474,947,693.02/22,210.63
  6. Step 6: Final answer
    x = 21,383.81

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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.