Home / 43,931.48-65,903.65-13,935.71

Finding the Fourth Proportional to 43,931.48, 65,903.65 and 13,935.71

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Solution

The fourth proportional to 43,931.48, 65,903.65 and 13,935.71 is: 20,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,931.48 : 65,903.65 = 13,935.71 : x
  2. Step 2: Convert to fraction form
    43,931.48/65,903.65 = 13,935.71/x
  3. Step 3: Cross multiply
    43,931.48x = 65,903.65 × 13,935.71
  4. Step 4: Simplify right side
    43,931.48x = 918,414,154.34
  5. Step 5: Solve for x
    x = 918,414,154.34/43,931.48
  6. Step 6: Final answer
    x = 20,905.60

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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.