Home / 31,507.79-43,480.40-17,895.74

Finding the Fourth Proportional to 31,507.79, 43,480.40 and 17,895.74

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Solution

The fourth proportional to 31,507.79, 43,480.40 and 17,895.74 is: 24,695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507.79 : 43,480.40 = 17,895.74 : x
  2. Step 2: Convert to fraction form
    31,507.79/43,480.40 = 17,895.74/x
  3. Step 3: Cross multiply
    31,507.79x = 43,480.40 × 17,895.74
  4. Step 4: Simplify right side
    31,507.79x = 778,113,626.62
  5. Step 5: Solve for x
    x = 778,113,626.62/31,507.79
  6. Step 6: Final answer
    x = 24,695.92

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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.