Home / 40,898.68-61,348.06-12,820.93

Finding the Fourth Proportional to 40,898.68, 61,348.06 and 12,820.93

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Solution

The fourth proportional to 40,898.68, 61,348.06 and 12,820.93 is: 19,231.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,898.68 : 61,348.06 = 12,820.93 : x
  2. Step 2: Convert to fraction form
    40,898.68/61,348.06 = 12,820.93/x
  3. Step 3: Cross multiply
    40,898.68x = 61,348.06 × 12,820.93
  4. Step 4: Simplify right side
    40,898.68x = 786,539,182.90
  5. Step 5: Solve for x
    x = 786,539,182.90/40,898.68
  6. Step 6: Final answer
    x = 19,231.41

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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.