Home / 19,031.32-28,555.14-7,352.80

Finding the Fourth Proportional to 19,031.32, 28,555.14 and 7,352.80

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Solution

The fourth proportional to 19,031.32, 28,555.14 and 7,352.80 is: 11,032.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031.32 : 28,555.14 = 7,352.80 : x
  2. Step 2: Convert to fraction form
    19,031.32/28,555.14 = 7,352.80/x
  3. Step 3: Cross multiply
    19,031.32x = 28,555.14 × 7,352.80
  4. Step 4: Simplify right side
    19,031.32x = 209,960,233.39
  5. Step 5: Solve for x
    x = 209,960,233.39/19,031.32
  6. Step 6: Final answer
    x = 11,032.35

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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.