Home / 20,673.32-31,011.60-14,164.16

Finding the Fourth Proportional to 20,673.32, 31,011.60 and 14,164.16

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Solution

The fourth proportional to 20,673.32, 31,011.60 and 14,164.16 is: 21,247.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.32 : 31,011.60 = 14,164.16 : x
  2. Step 2: Convert to fraction form
    20,673.32/31,011.60 = 14,164.16/x
  3. Step 3: Cross multiply
    20,673.32x = 31,011.60 × 14,164.16
  4. Step 4: Simplify right side
    20,673.32x = 439,253,264.26
  5. Step 5: Solve for x
    x = 439,253,264.26/20,673.32
  6. Step 6: Final answer
    x = 21,247.35

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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.