Home / 28,492.02-42,748.83-11,847.78

Finding the Fourth Proportional to 28,492.02, 42,748.83 and 11,847.78

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Solution

The fourth proportional to 28,492.02, 42,748.83 and 11,847.78 is: 17,776.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,492.02 : 42,748.83 = 11,847.78 : x
  2. Step 2: Convert to fraction form
    28,492.02/42,748.83 = 11,847.78/x
  3. Step 3: Cross multiply
    28,492.02x = 42,748.83 × 11,847.78
  4. Step 4: Simplify right side
    28,492.02x = 506,478,733.10
  5. Step 5: Solve for x
    x = 506,478,733.10/28,492.02
  6. Step 6: Final answer
    x = 17,776.16

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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.