Home / 40,898.32-61,347.49-12,820.56

Finding the Fourth Proportional to 40,898.32, 61,347.49 and 12,820.56

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Solution

The fourth proportional to 40,898.32, 61,347.49 and 12,820.56 is: 19,230.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,898.32 : 61,347.49 = 12,820.56 : x
  2. Step 2: Convert to fraction form
    40,898.32/61,347.49 = 12,820.56/x
  3. Step 3: Cross multiply
    40,898.32x = 61,347.49 × 12,820.56
  4. Step 4: Simplify right side
    40,898.32x = 786,509,176.39
  5. Step 5: Solve for x
    x = 786,509,176.39/40,898.32
  6. Step 6: Final answer
    x = 19,230.84

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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.