Home / 20,041.02-27,656.64-11,088.90

Finding the Fourth Proportional to 20,041.02, 27,656.64 and 11,088.90

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Solution

The fourth proportional to 20,041.02, 27,656.64 and 11,088.90 is: 15,302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,041.02 : 27,656.64 = 11,088.90 : x
  2. Step 2: Convert to fraction form
    20,041.02/27,656.64 = 11,088.90/x
  3. Step 3: Cross multiply
    20,041.02x = 27,656.64 × 11,088.90
  4. Step 4: Simplify right side
    20,041.02x = 306,681,715.30
  5. Step 5: Solve for x
    x = 306,681,715.30/20,041.02
  6. Step 6: Final answer
    x = 15,302.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.