Home / 28,861.61-43,294.88-10,140.03

Finding the Fourth Proportional to 28,861.61, 43,294.88 and 10,140.03

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Solution

The fourth proportional to 28,861.61, 43,294.88 and 10,140.03 is: 15,210.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,861.61 : 43,294.88 = 10,140.03 : x
  2. Step 2: Convert to fraction form
    28,861.61/43,294.88 = 10,140.03/x
  3. Step 3: Cross multiply
    28,861.61x = 43,294.88 × 10,140.03
  4. Step 4: Simplify right side
    28,861.61x = 439,011,407.40
  5. Step 5: Solve for x
    x = 439,011,407.40/28,861.61
  6. Step 6: Final answer
    x = 15,210.91

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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.