Home / 19,955.18-29,938.86-9,433.28

Finding the Fourth Proportional to 19,955.18, 29,938.86 and 9,433.28

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Solution

The fourth proportional to 19,955.18, 29,938.86 and 9,433.28 is: 14,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.18 : 29,938.86 = 9,433.28 : x
  2. Step 2: Convert to fraction form
    19,955.18/29,938.86 = 9,433.28/x
  3. Step 3: Cross multiply
    19,955.18x = 29,938.86 × 9,433.28
  4. Step 4: Simplify right side
    19,955.18x = 282,421,649.26
  5. Step 5: Solve for x
    x = 282,421,649.26/19,955.18
  6. Step 6: Final answer
    x = 14,152.80

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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.