Home / 18,970.18-26,151.63-14,930

Finding the Fourth Proportional to 18,970.18, 26,151.63 and 14,930

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Solution

The fourth proportional to 18,970.18, 26,151.63 and 14,930 is: 20,581.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.18 : 26,151.63 = 14,930 : x
  2. Step 2: Convert to fraction form
    18,970.18/26,151.63 = 14,930/x
  3. Step 3: Cross multiply
    18,970.18x = 26,151.63 × 14,930
  4. Step 4: Simplify right side
    18,970.18x = 390,443,835.90
  5. Step 5: Solve for x
    x = 390,443,835.90/18,970.18
  6. Step 6: Final answer
    x = 20,581.98

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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.