Home / 21,341.08-31,985.70-15,102.93

Finding the Fourth Proportional to 21,341.08, 31,985.70 and 15,102.93

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Solution

The fourth proportional to 21,341.08, 31,985.70 and 15,102.93 is: 22,636.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341.08 : 31,985.70 = 15,102.93 : x
  2. Step 2: Convert to fraction form
    21,341.08/31,985.70 = 15,102.93/x
  3. Step 3: Cross multiply
    21,341.08x = 31,985.70 × 15,102.93
  4. Step 4: Simplify right side
    21,341.08x = 483,077,788.10
  5. Step 5: Solve for x
    x = 483,077,788.10/21,341.08
  6. Step 6: Final answer
    x = 22,636.05

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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.