Home / 40,965.29-61,484.54-20,988.38

Finding the Fourth Proportional to 40,965.29, 61,484.54 and 20,988.38

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Solution

The fourth proportional to 40,965.29, 61,484.54 and 20,988.38 is: 31,501.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,965.29 : 61,484.54 = 20,988.38 : x
  2. Step 2: Convert to fraction form
    40,965.29/61,484.54 = 20,988.38/x
  3. Step 3: Cross multiply
    40,965.29x = 61,484.54 × 20,988.38
  4. Step 4: Simplify right side
    40,965.29x = 1,290,460,477.28
  5. Step 5: Solve for x
    x = 1,290,460,477.28/40,965.29
  6. Step 6: Final answer
    x = 31,501.32

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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.