Home / 20,237.02-27,931.54-13,151.14

Finding the Fourth Proportional to 20,237.02, 27,931.54 and 13,151.14

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Solution

The fourth proportional to 20,237.02, 27,931.54 and 13,151.14 is: 18,151.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.02 : 27,931.54 = 13,151.14 : x
  2. Step 2: Convert to fraction form
    20,237.02/27,931.54 = 13,151.14/x
  3. Step 3: Cross multiply
    20,237.02x = 27,931.54 × 13,151.14
  4. Step 4: Simplify right side
    20,237.02x = 367,331,592.96
  5. Step 5: Solve for x
    x = 367,331,592.96/20,237.02
  6. Step 6: Final answer
    x = 18,151.47

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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.