Home / 30,197.55-45,250.14-12,657.81

Finding the Fourth Proportional to 30,197.55, 45,250.14 and 12,657.81

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Solution

The fourth proportional to 30,197.55, 45,250.14 and 12,657.81 is: 18,967.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,197.55 : 45,250.14 = 12,657.81 : x
  2. Step 2: Convert to fraction form
    30,197.55/45,250.14 = 12,657.81/x
  3. Step 3: Cross multiply
    30,197.55x = 45,250.14 × 12,657.81
  4. Step 4: Simplify right side
    30,197.55x = 572,767,674.59
  5. Step 5: Solve for x
    x = 572,767,674.59/30,197.55
  6. Step 6: Final answer
    x = 18,967.36

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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.