Home / 28,090.02-42,123.34-11,438.76

Finding the Fourth Proportional to 28,090.02, 42,123.34 and 11,438.76

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Solution

The fourth proportional to 28,090.02, 42,123.34 and 11,438.76 is: 17,153.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,090.02 : 42,123.34 = 11,438.76 : x
  2. Step 2: Convert to fraction form
    28,090.02/42,123.34 = 11,438.76/x
  3. Step 3: Cross multiply
    28,090.02x = 42,123.34 × 11,438.76
  4. Step 4: Simplify right side
    28,090.02x = 481,838,776.66
  5. Step 5: Solve for x
    x = 481,838,776.66/28,090.02
  6. Step 6: Final answer
    x = 17,153.38

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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.