Home / 30,359.22-45,521.88-12,585.06

Finding the Fourth Proportional to 30,359.22, 45,521.88 and 12,585.06

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Solution

The fourth proportional to 30,359.22, 45,521.88 and 12,585.06 is: 18,870.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359.22 : 45,521.88 = 12,585.06 : x
  2. Step 2: Convert to fraction form
    30,359.22/45,521.88 = 12,585.06/x
  3. Step 3: Cross multiply
    30,359.22x = 45,521.88 × 12,585.06
  4. Step 4: Simplify right side
    30,359.22x = 572,895,591.11
  5. Step 5: Solve for x
    x = 572,895,591.11/30,359.22
  6. Step 6: Final answer
    x = 18,870.56

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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.