Home / 20,710.95-31,035.71-15,212.07

Finding the Fourth Proportional to 20,710.95, 31,035.71 and 15,212.07

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Solution

The fourth proportional to 20,710.95, 31,035.71 and 15,212.07 is: 22,795.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.95 : 31,035.71 = 15,212.07 : x
  2. Step 2: Convert to fraction form
    20,710.95/31,035.71 = 15,212.07/x
  3. Step 3: Cross multiply
    20,710.95x = 31,035.71 × 15,212.07
  4. Step 4: Simplify right side
    20,710.95x = 472,117,316.96
  5. Step 5: Solve for x
    x = 472,117,316.96/20,710.95
  6. Step 6: Final answer
    x = 22,795.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.