Home / 25,701.60-38,552.40-13,221.60

Finding the Fourth Proportional to 25,701.60, 38,552.40 and 13,221.60

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Solution

The fourth proportional to 25,701.60, 38,552.40 and 13,221.60 is: 19,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,701.60 : 38,552.40 = 13,221.60 : x
  2. Step 2: Convert to fraction form
    25,701.60/38,552.40 = 13,221.60/x
  3. Step 3: Cross multiply
    25,701.60x = 38,552.40 × 13,221.60
  4. Step 4: Simplify right side
    25,701.60x = 509,724,411.84
  5. Step 5: Solve for x
    x = 509,724,411.84/25,701.60
  6. Step 6: Final answer
    x = 19,832.40

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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.