Home / 42,686.04-58,874.40-25,689

Finding the Fourth Proportional to 42,686.04, 58,874.40 and 25,689

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Solution

The fourth proportional to 42,686.04, 58,874.40 and 25,689 is: 35,431.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,686.04 : 58,874.40 = 25,689 : x
  2. Step 2: Convert to fraction form
    42,686.04/58,874.40 = 25,689/x
  3. Step 3: Cross multiply
    42,686.04x = 58,874.40 × 25,689
  4. Step 4: Simplify right side
    42,686.04x = 1,512,424,461.60
  5. Step 5: Solve for x
    x = 1,512,424,461.60/42,686.04
  6. Step 6: Final answer
    x = 35,431.36

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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.