Home / 22,140.90-30,555.02-13,648.63

Finding the Fourth Proportional to 22,140.90, 30,555.02 and 13,648.63

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Solution

The fourth proportional to 22,140.90, 30,555.02 and 13,648.63 is: 18,835.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140.90 : 30,555.02 = 13,648.63 : x
  2. Step 2: Convert to fraction form
    22,140.90/30,555.02 = 13,648.63/x
  3. Step 3: Cross multiply
    22,140.90x = 30,555.02 × 13,648.63
  4. Step 4: Simplify right side
    22,140.90x = 417,034,162.62
  5. Step 5: Solve for x
    x = 417,034,162.62/22,140.90
  6. Step 6: Final answer
    x = 18,835.47

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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.