Home / 30,192.64-45,274.39-12,657.76

Finding the Fourth Proportional to 30,192.64, 45,274.39 and 12,657.76

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Solution

The fourth proportional to 30,192.64, 45,274.39 and 12,657.76 is: 18,980.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,192.64 : 45,274.39 = 12,657.76 : x
  2. Step 2: Convert to fraction form
    30,192.64/45,274.39 = 12,657.76/x
  3. Step 3: Cross multiply
    30,192.64x = 45,274.39 × 12,657.76
  4. Step 4: Simplify right side
    30,192.64x = 573,072,362.77
  5. Step 5: Solve for x
    x = 573,072,362.77/30,192.64
  6. Step 6: Final answer
    x = 18,980.53

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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.