Home / 15,971.68-22,051.28-14,980.32

Finding the Fourth Proportional to 15,971.68, 22,051.28 and 14,980.32

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Solution

The fourth proportional to 15,971.68, 22,051.28 and 14,980.32 is: 20,682.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,971.68 : 22,051.28 = 14,980.32 : x
  2. Step 2: Convert to fraction form
    15,971.68/22,051.28 = 14,980.32/x
  3. Step 3: Cross multiply
    15,971.68x = 22,051.28 × 14,980.32
  4. Step 4: Simplify right side
    15,971.68x = 330,335,230.81
  5. Step 5: Solve for x
    x = 330,335,230.81/15,971.68
  6. Step 6: Final answer
    x = 20,682.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.