Home / 26,779.28-40,168.96-10,981.40

Finding the Fourth Proportional to 26,779.28, 40,168.96 and 10,981.40

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Solution

The fourth proportional to 26,779.28, 40,168.96 and 10,981.40 is: 16,472.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,779.28 : 40,168.96 = 10,981.40 : x
  2. Step 2: Convert to fraction form
    26,779.28/40,168.96 = 10,981.40/x
  3. Step 3: Cross multiply
    26,779.28x = 40,168.96 × 10,981.40
  4. Step 4: Simplify right side
    26,779.28x = 441,111,417.34
  5. Step 5: Solve for x
    x = 441,111,417.34/26,779.28
  6. Step 6: Final answer
    x = 16,472.12

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1.5x scale

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.