Home / 43,009.99-64,504.05-13,430.81

Finding the Fourth Proportional to 43,009.99, 64,504.05 and 13,430.81

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Solution

The fourth proportional to 43,009.99, 64,504.05 and 13,430.81 is: 20,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,009.99 : 64,504.05 = 13,430.81 : x
  2. Step 2: Convert to fraction form
    43,009.99/64,504.05 = 13,430.81/x
  3. Step 3: Cross multiply
    43,009.99x = 64,504.05 × 13,430.81
  4. Step 4: Simplify right side
    43,009.99x = 866,341,750.68
  5. Step 5: Solve for x
    x = 866,341,750.68/43,009.99
  6. Step 6: Final answer
    x = 20,142.80

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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.