Home / 20,810.60-31,098.26-14,978.60

Finding the Fourth Proportional to 20,810.60, 31,098.26 and 14,978.60

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Solution

The fourth proportional to 20,810.60, 31,098.26 and 14,978.60 is: 22,383.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,810.60 : 31,098.26 = 14,978.60 : x
  2. Step 2: Convert to fraction form
    20,810.60/31,098.26 = 14,978.60/x
  3. Step 3: Cross multiply
    20,810.60x = 31,098.26 × 14,978.60
  4. Step 4: Simplify right side
    20,810.60x = 465,808,397.24
  5. Step 5: Solve for x
    x = 465,808,397.24/20,810.60
  6. Step 6: Final answer
    x = 22,383.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.