Home / 22,931.55-31,652.10-13,505.58

Finding the Fourth Proportional to 22,931.55, 31,652.10 and 13,505.58

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Solution

The fourth proportional to 22,931.55, 31,652.10 and 13,505.58 is: 18,641.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,931.55 : 31,652.10 = 13,505.58 : x
  2. Step 2: Convert to fraction form
    22,931.55/31,652.10 = 13,505.58/x
  3. Step 3: Cross multiply
    22,931.55x = 31,652.10 × 13,505.58
  4. Step 4: Simplify right side
    22,931.55x = 427,479,968.72
  5. Step 5: Solve for x
    x = 427,479,968.72/22,931.55
  6. Step 6: Final answer
    x = 18,641.56

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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.