Home / 26,680.66-39,989.18-12,430.02

Finding the Fourth Proportional to 26,680.66, 39,989.18 and 12,430.02

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Solution

The fourth proportional to 26,680.66, 39,989.18 and 12,430.02 is: 18,630.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,680.66 : 39,989.18 = 12,430.02 : x
  2. Step 2: Convert to fraction form
    26,680.66/39,989.18 = 12,430.02/x
  3. Step 3: Cross multiply
    26,680.66x = 39,989.18 × 12,430.02
  4. Step 4: Simplify right side
    26,680.66x = 497,066,307.18
  5. Step 5: Solve for x
    x = 497,066,307.18/26,680.66
  6. Step 6: Final answer
    x = 18,630.21

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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.