Home / 35,648.19-53,454.29-20,861.55

Finding the Fourth Proportional to 35,648.19, 53,454.29 and 20,861.55

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Solution

The fourth proportional to 35,648.19, 53,454.29 and 20,861.55 is: 31,281.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,648.19 : 53,454.29 = 20,861.55 : x
  2. Step 2: Convert to fraction form
    35,648.19/53,454.29 = 20,861.55/x
  3. Step 3: Cross multiply
    35,648.19x = 53,454.29 × 20,861.55
  4. Step 4: Simplify right side
    35,648.19x = 1,115,139,239.24
  5. Step 5: Solve for x
    x = 1,115,139,239.24/35,648.19
  6. Step 6: Final answer
    x = 31,281.79

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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.