Home / 30,266.92-45,399.28-10,545.40

Finding the Fourth Proportional to 30,266.92, 45,399.28 and 10,545.40

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Solution

The fourth proportional to 30,266.92, 45,399.28 and 10,545.40 is: 15,817.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,266.92 : 45,399.28 = 10,545.40 : x
  2. Step 2: Convert to fraction form
    30,266.92/45,399.28 = 10,545.40/x
  3. Step 3: Cross multiply
    30,266.92x = 45,399.28 × 10,545.40
  4. Step 4: Simplify right side
    30,266.92x = 478,753,567.31
  5. Step 5: Solve for x
    x = 478,753,567.31/30,266.92
  6. Step 6: Final answer
    x = 15,817.72

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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.