Home / 30,282.50-45,423.95-10,561.05

Finding the Fourth Proportional to 30,282.50, 45,423.95 and 10,561.05

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Solution

The fourth proportional to 30,282.50, 45,423.95 and 10,561.05 is: 15,841.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,282.50 : 45,423.95 = 10,561.05 : x
  2. Step 2: Convert to fraction form
    30,282.50/45,423.95 = 10,561.05/x
  3. Step 3: Cross multiply
    30,282.50x = 45,423.95 × 10,561.05
  4. Step 4: Simplify right side
    30,282.50x = 479,724,554.34
  5. Step 5: Solve for x
    x = 479,724,554.34/30,282.50
  6. Step 6: Final answer
    x = 15,841.65

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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.