Home / 39,314.40-54,322.96-31,421.76

Finding the Fourth Proportional to 39,314.40, 54,322.96 and 31,421.76

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Solution

The fourth proportional to 39,314.40, 54,322.96 and 31,421.76 is: 43,417.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,314.40 : 54,322.96 = 31,421.76 : x
  2. Step 2: Convert to fraction form
    39,314.40/54,322.96 = 31,421.76/x
  3. Step 3: Cross multiply
    39,314.40x = 54,322.96 × 31,421.76
  4. Step 4: Simplify right side
    39,314.40x = 1,706,923,011.61
  5. Step 5: Solve for x
    x = 1,706,923,011.61/39,314.40
  6. Step 6: Final answer
    x = 43,417.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.