Home / 37,615.16-56,422.20-12,660.68

Finding the Fourth Proportional to 37,615.16, 56,422.20 and 12,660.68

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Solution

The fourth proportional to 37,615.16, 56,422.20 and 12,660.68 is: 18,990.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,615.16 : 56,422.20 = 12,660.68 : x
  2. Step 2: Convert to fraction form
    37,615.16/56,422.20 = 12,660.68/x
  3. Step 3: Cross multiply
    37,615.16x = 56,422.20 × 12,660.68
  4. Step 4: Simplify right side
    37,615.16x = 714,343,419.10
  5. Step 5: Solve for x
    x = 714,343,419.10/37,615.16
  6. Step 6: Final answer
    x = 18,990.84

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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.