Home / 20,547.00-28,354.57-11,472.50

Finding the Fourth Proportional to 20,547.00, 28,354.57 and 11,472.50

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Solution

The fourth proportional to 20,547.00, 28,354.57 and 11,472.50 is: 15,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.00 : 28,354.57 = 11,472.50 : x
  2. Step 2: Convert to fraction form
    20,547.00/28,354.57 = 11,472.50/x
  3. Step 3: Cross multiply
    20,547.00x = 28,354.57 × 11,472.50
  4. Step 4: Simplify right side
    20,547.00x = 325,297,662.55
  5. Step 5: Solve for x
    x = 325,297,662.55/20,547.00
  6. Step 6: Final answer
    x = 15,831.89

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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.