Home / 43,621.54-65,430.48-14,038.72

Finding the Fourth Proportional to 43,621.54, 65,430.48 and 14,038.72

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Solution

The fourth proportional to 43,621.54, 65,430.48 and 14,038.72 is: 21,057.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,621.54 : 65,430.48 = 14,038.72 : x
  2. Step 2: Convert to fraction form
    43,621.54/65,430.48 = 14,038.72/x
  3. Step 3: Cross multiply
    43,621.54x = 65,430.48 × 14,038.72
  4. Step 4: Simplify right side
    43,621.54x = 918,560,077.25
  5. Step 5: Solve for x
    x = 918,560,077.25/43,621.54
  6. Step 6: Final answer
    x = 21,057.49

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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.