Home / 28,528.22-42,792.30-10,985.76

Finding the Fourth Proportional to 28,528.22, 42,792.30 and 10,985.76

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Solution

The fourth proportional to 28,528.22, 42,792.30 and 10,985.76 is: 16,478.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.22 : 42,792.30 = 10,985.76 : x
  2. Step 2: Convert to fraction form
    28,528.22/42,792.30 = 10,985.76/x
  3. Step 3: Cross multiply
    28,528.22x = 42,792.30 × 10,985.76
  4. Step 4: Simplify right side
    28,528.22x = 470,105,937.65
  5. Step 5: Solve for x
    x = 470,105,937.65/28,528.22
  6. Step 6: Final answer
    x = 16,478.63

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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.