Home / 30,366.48-45,545.40-13,745.28

Finding the Fourth Proportional to 30,366.48, 45,545.40 and 13,745.28

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Solution

The fourth proportional to 30,366.48, 45,545.40 and 13,745.28 is: 20,615.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,366.48 : 45,545.40 = 13,745.28 : x
  2. Step 2: Convert to fraction form
    30,366.48/45,545.40 = 13,745.28/x
  3. Step 3: Cross multiply
    30,366.48x = 45,545.40 × 13,745.28
  4. Step 4: Simplify right side
    30,366.48x = 626,034,275.71
  5. Step 5: Solve for x
    x = 626,034,275.71/30,366.48
  6. Step 6: Final answer
    x = 20,615.96

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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.