Home / 20,941.04-31,412.28-10,547.12

Finding the Fourth Proportional to 20,941.04, 31,412.28 and 10,547.12

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Solution

The fourth proportional to 20,941.04, 31,412.28 and 10,547.12 is: 15,821.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.04 : 31,412.28 = 10,547.12 : x
  2. Step 2: Convert to fraction form
    20,941.04/31,412.28 = 10,547.12/x
  3. Step 3: Cross multiply
    20,941.04x = 31,412.28 × 10,547.12
  4. Step 4: Simplify right side
    20,941.04x = 331,309,086.63
  5. Step 5: Solve for x
    x = 331,309,086.63/20,941.04
  6. Step 6: Final answer
    x = 15,821.04

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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.