Home / 26,315.78-36,315.74-14,985.28

Finding the Fourth Proportional to 26,315.78, 36,315.74 and 14,985.28

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Solution

The fourth proportional to 26,315.78, 36,315.74 and 14,985.28 is: 20,679.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,315.78 : 36,315.74 = 14,985.28 : x
  2. Step 2: Convert to fraction form
    26,315.78/36,315.74 = 14,985.28/x
  3. Step 3: Cross multiply
    26,315.78x = 36,315.74 × 14,985.28
  4. Step 4: Simplify right side
    26,315.78x = 544,201,599.21
  5. Step 5: Solve for x
    x = 544,201,599.21/26,315.78
  6. Step 6: Final answer
    x = 20,679.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.