Home / 42,486.10-58,633.67-28,121.18

Finding the Fourth Proportional to 42,486.10, 58,633.67 and 28,121.18

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Solution

The fourth proportional to 42,486.10, 58,633.67 and 28,121.18 is: 38,809.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,486.10 : 58,633.67 = 28,121.18 : x
  2. Step 2: Convert to fraction form
    42,486.10/58,633.67 = 28,121.18/x
  3. Step 3: Cross multiply
    42,486.10x = 58,633.67 × 28,121.18
  4. Step 4: Simplify right side
    42,486.10x = 1,648,847,988.13
  5. Step 5: Solve for x
    x = 1,648,847,988.13/42,486.10
  6. Step 6: Final answer
    x = 38,809.12

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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.