Home / 20,730.18-28,585.04-14,004.13

Finding the Fourth Proportional to 20,730.18, 28,585.04 and 14,004.13

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Solution

The fourth proportional to 20,730.18, 28,585.04 and 14,004.13 is: 19,310.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730.18 : 28,585.04 = 14,004.13 : x
  2. Step 2: Convert to fraction form
    20,730.18/28,585.04 = 14,004.13/x
  3. Step 3: Cross multiply
    20,730.18x = 28,585.04 × 14,004.13
  4. Step 4: Simplify right side
    20,730.18x = 400,308,547.21
  5. Step 5: Solve for x
    x = 400,308,547.21/20,730.18
  6. Step 6: Final answer
    x = 19,310.42

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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.