Home / 43,407.60-64,981.80-25,868.40

Finding the Fourth Proportional to 43,407.60, 64,981.80 and 25,868.40

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Solution

The fourth proportional to 43,407.60, 64,981.80 and 25,868.40 is: 38,725.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,407.60 : 64,981.80 = 25,868.40 : x
  2. Step 2: Convert to fraction form
    43,407.60/64,981.80 = 25,868.40/x
  3. Step 3: Cross multiply
    43,407.60x = 64,981.80 × 25,868.40
  4. Step 4: Simplify right side
    43,407.60x = 1,680,975,195.12
  5. Step 5: Solve for x
    x = 1,680,975,195.12/43,407.60
  6. Step 6: Final answer
    x = 38,725.37

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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.