Home / 43,085.80-64,628.58-13,503.76

Finding the Fourth Proportional to 43,085.80, 64,628.58 and 13,503.76

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Solution

The fourth proportional to 43,085.80, 64,628.58 and 13,503.76 is: 20,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,085.80 : 64,628.58 = 13,503.76 : x
  2. Step 2: Convert to fraction form
    43,085.80/64,628.58 = 13,503.76/x
  3. Step 3: Cross multiply
    43,085.80x = 64,628.58 × 13,503.76
  4. Step 4: Simplify right side
    43,085.80x = 872,728,833.46
  5. Step 5: Solve for x
    x = 872,728,833.46/43,085.80
  6. Step 6: Final answer
    x = 20,255.60

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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.