Home / 39,031.66-58,549.58-12,379.76

Finding the Fourth Proportional to 39,031.66, 58,549.58 and 12,379.76

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Solution

The fourth proportional to 39,031.66, 58,549.58 and 12,379.76 is: 18,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,031.66 : 58,549.58 = 12,379.76 : x
  2. Step 2: Convert to fraction form
    39,031.66/58,549.58 = 12,379.76/x
  3. Step 3: Cross multiply
    39,031.66x = 58,549.58 × 12,379.76
  4. Step 4: Simplify right side
    39,031.66x = 724,829,748.50
  5. Step 5: Solve for x
    x = 724,829,748.50/39,031.66
  6. Step 6: Final answer
    x = 18,570.30

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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.