Home / 21,209.60-29,276.16-14,923.52

Finding the Fourth Proportional to 21,209.60, 29,276.16 and 14,923.52

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Solution

The fourth proportional to 21,209.60, 29,276.16 and 14,923.52 is: 20,599.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,209.60 : 29,276.16 = 14,923.52 : x
  2. Step 2: Convert to fraction form
    21,209.60/29,276.16 = 14,923.52/x
  3. Step 3: Cross multiply
    21,209.60x = 29,276.16 × 14,923.52
  4. Step 4: Simplify right side
    21,209.60x = 436,903,359.28
  5. Step 5: Solve for x
    x = 436,903,359.28/21,209.60
  6. Step 6: Final answer
    x = 20,599.32

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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.