Home / 28,541.42-42,829.95-20,537

Finding the Fourth Proportional to 28,541.42, 42,829.95 and 20,537

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Solution

The fourth proportional to 28,541.42, 42,829.95 and 20,537 is: 30,818.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,541.42 : 42,829.95 = 20,537 : x
  2. Step 2: Convert to fraction form
    28,541.42/42,829.95 = 20,537/x
  3. Step 3: Cross multiply
    28,541.42x = 42,829.95 × 20,537
  4. Step 4: Simplify right side
    28,541.42x = 879,598,683.15
  5. Step 5: Solve for x
    x = 879,598,683.15/28,541.42
  6. Step 6: Final answer
    x = 30,818.32

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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.