Home / 43,140.84-64,711.31-13,561.26

Finding the Fourth Proportional to 43,140.84, 64,711.31 and 13,561.26

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Solution

The fourth proportional to 43,140.84, 64,711.31 and 13,561.26 is: 20,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140.84 : 64,711.31 = 13,561.26 : x
  2. Step 2: Convert to fraction form
    43,140.84/64,711.31 = 13,561.26/x
  3. Step 3: Cross multiply
    43,140.84x = 64,711.31 × 13,561.26
  4. Step 4: Simplify right side
    43,140.84x = 877,566,832.04
  5. Step 5: Solve for x
    x = 877,566,832.04/43,140.84
  6. Step 6: Final answer
    x = 20,341.90

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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.