Home / 29,030.40-43,529.40-12,387.60

Finding the Fourth Proportional to 29,030.40, 43,529.40 and 12,387.60

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Solution

The fourth proportional to 29,030.40, 43,529.40 and 12,387.60 is: 18,574.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,030.40 : 43,529.40 = 12,387.60 : x
  2. Step 2: Convert to fraction form
    29,030.40/43,529.40 = 12,387.60/x
  3. Step 3: Cross multiply
    29,030.40x = 43,529.40 × 12,387.60
  4. Step 4: Simplify right side
    29,030.40x = 539,224,795.44
  5. Step 5: Solve for x
    x = 539,224,795.44/29,030.40
  6. Step 6: Final answer
    x = 18,574.49

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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.