Home / 21,057.03-31,602.05-14,690.50

Finding the Fourth Proportional to 21,057.03, 31,602.05 and 14,690.50

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Solution

The fourth proportional to 21,057.03, 31,602.05 and 14,690.50 is: 22,047.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,057.03 : 31,602.05 = 14,690.50 : x
  2. Step 2: Convert to fraction form
    21,057.03/31,602.05 = 14,690.50/x
  3. Step 3: Cross multiply
    21,057.03x = 31,602.05 × 14,690.50
  4. Step 4: Simplify right side
    21,057.03x = 464,249,842.07
  5. Step 5: Solve for x
    x = 464,249,842.07/21,057.03
  6. Step 6: Final answer
    x = 22,047.27

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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.