Home / 22,971.84-31,713.18-15,457.68

Finding the Fourth Proportional to 22,971.84, 31,713.18 and 15,457.68

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Solution

The fourth proportional to 22,971.84, 31,713.18 and 15,457.68 is: 21,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,971.84 : 31,713.18 = 15,457.68 : x
  2. Step 2: Convert to fraction form
    22,971.84/31,713.18 = 15,457.68/x
  3. Step 3: Cross multiply
    22,971.84x = 31,713.18 × 15,457.68
  4. Step 4: Simplify right side
    22,971.84x = 490,212,188.22
  5. Step 5: Solve for x
    x = 490,212,188.22/22,971.84
  6. Step 6: Final answer
    x = 21,339.70

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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.