Home / 26,965.28-40,421.80-10,312.50

Finding the Fourth Proportional to 26,965.28, 40,421.80 and 10,312.50

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Solution

The fourth proportional to 26,965.28, 40,421.80 and 10,312.50 is: 15,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,965.28 : 40,421.80 = 10,312.50 : x
  2. Step 2: Convert to fraction form
    26,965.28/40,421.80 = 10,312.50/x
  3. Step 3: Cross multiply
    26,965.28x = 40,421.80 × 10,312.50
  4. Step 4: Simplify right side
    26,965.28x = 416,849,812.50
  5. Step 5: Solve for x
    x = 416,849,812.50/26,965.28
  6. Step 6: Final answer
    x = 15,458.76

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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.