Home / 30,117.21-45,139.96-22,697.20

Finding the Fourth Proportional to 30,117.21, 45,139.96 and 22,697.20

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Solution

The fourth proportional to 30,117.21, 45,139.96 and 22,697.20 is: 34,018.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,117.21 : 45,139.96 = 22,697.20 : x
  2. Step 2: Convert to fraction form
    30,117.21/45,139.96 = 22,697.20/x
  3. Step 3: Cross multiply
    30,117.21x = 45,139.96 × 22,697.20
  4. Step 4: Simplify right side
    30,117.21x = 1,024,550,700.11
  5. Step 5: Solve for x
    x = 1,024,550,700.11/30,117.21
  6. Step 6: Final answer
    x = 34,018.78

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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.