Home / 43,430.09-65,124.30-21,217.46

Finding the Fourth Proportional to 43,430.09, 65,124.30 and 21,217.46

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Solution

The fourth proportional to 43,430.09, 65,124.30 and 21,217.46 is: 31,816.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,430.09 : 65,124.30 = 21,217.46 : x
  2. Step 2: Convert to fraction form
    43,430.09/65,124.30 = 21,217.46/x
  3. Step 3: Cross multiply
    43,430.09x = 65,124.30 × 21,217.46
  4. Step 4: Simplify right side
    43,430.09x = 1,381,771,984.22
  5. Step 5: Solve for x
    x = 1,381,771,984.22/43,430.09
  6. Step 6: Final answer
    x = 31,816.01

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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.