Home / 35,965.40-53,931.90-13,771.40

Finding the Fourth Proportional to 35,965.40, 53,931.90 and 13,771.40

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Solution

The fourth proportional to 35,965.40, 53,931.90 and 13,771.40 is: 20,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,965.40 : 53,931.90 = 13,771.40 : x
  2. Step 2: Convert to fraction form
    35,965.40/53,931.90 = 13,771.40/x
  3. Step 3: Cross multiply
    35,965.40x = 53,931.90 × 13,771.40
  4. Step 4: Simplify right side
    35,965.40x = 742,717,767.66
  5. Step 5: Solve for x
    x = 742,717,767.66/35,965.40
  6. Step 6: Final answer
    x = 20,650.90

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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.