Home / 35,640.60-53,419.56-13,439.76

Finding the Fourth Proportional to 35,640.60, 53,419.56 and 13,439.76

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Solution

The fourth proportional to 35,640.60, 53,419.56 and 13,439.76 is: 20,144.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,640.60 : 53,419.56 = 13,439.76 : x
  2. Step 2: Convert to fraction form
    35,640.60/53,419.56 = 13,439.76/x
  3. Step 3: Cross multiply
    35,640.60x = 53,419.56 × 13,439.76
  4. Step 4: Simplify right side
    35,640.60x = 717,946,065.71
  5. Step 5: Solve for x
    x = 717,946,065.71/35,640.60
  6. Step 6: Final answer
    x = 20,144.05

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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.