Home / 31,426.53-43,366.04-18,503.76

Finding the Fourth Proportional to 31,426.53, 43,366.04 and 18,503.76

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Solution

The fourth proportional to 31,426.53, 43,366.04 and 18,503.76 is: 25,533.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.53 : 43,366.04 = 18,503.76 : x
  2. Step 2: Convert to fraction form
    31,426.53/43,366.04 = 18,503.76/x
  3. Step 3: Cross multiply
    31,426.53x = 43,366.04 × 18,503.76
  4. Step 4: Simplify right side
    31,426.53x = 802,434,703.79
  5. Step 5: Solve for x
    x = 802,434,703.79/31,426.53
  6. Step 6: Final answer
    x = 25,533.67

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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.