Home / 20,854.91-31,203.89-14,627.08

Finding the Fourth Proportional to 20,854.91, 31,203.89 and 14,627.08

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Solution

The fourth proportional to 20,854.91, 31,203.89 and 14,627.08 is: 21,885.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,854.91 : 31,203.89 = 14,627.08 : x
  2. Step 2: Convert to fraction form
    20,854.91/31,203.89 = 14,627.08/x
  3. Step 3: Cross multiply
    20,854.91x = 31,203.89 × 14,627.08
  4. Step 4: Simplify right side
    20,854.91x = 456,421,566.19
  5. Step 5: Solve for x
    x = 456,421,566.19/20,854.91
  6. Step 6: Final answer
    x = 21,885.57

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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.