Home / 21,985.24-32,950.77-12,505.51

Finding the Fourth Proportional to 21,985.24, 32,950.77 and 12,505.51

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Solution

The fourth proportional to 21,985.24, 32,950.77 and 12,505.51 is: 18,742.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,985.24 : 32,950.77 = 12,505.51 : x
  2. Step 2: Convert to fraction form
    21,985.24/32,950.77 = 12,505.51/x
  3. Step 3: Cross multiply
    21,985.24x = 32,950.77 × 12,505.51
  4. Step 4: Simplify right side
    21,985.24x = 412,066,124.81
  5. Step 5: Solve for x
    x = 412,066,124.81/21,985.24
  6. Step 6: Final answer
    x = 18,742.85

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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.