Home / 39,031.05-58,555.69-12,735.72

Finding the Fourth Proportional to 39,031.05, 58,555.69 and 12,735.72

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Solution

The fourth proportional to 39,031.05, 58,555.69 and 12,735.72 is: 19,106.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,031.05 : 58,555.69 = 12,735.72 : x
  2. Step 2: Convert to fraction form
    39,031.05/58,555.69 = 12,735.72/x
  3. Step 3: Cross multiply
    39,031.05x = 58,555.69 × 12,735.72
  4. Step 4: Simplify right side
    39,031.05x = 745,748,872.25
  5. Step 5: Solve for x
    x = 745,748,872.25/39,031.05
  6. Step 6: Final answer
    x = 19,106.55

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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.