Home / 26,678.51-40,037.50-12,638.57

Finding the Fourth Proportional to 26,678.51, 40,037.50 and 12,638.57

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Solution

The fourth proportional to 26,678.51, 40,037.50 and 12,638.57 is: 18,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,678.51 : 40,037.50 = 12,638.57 : x
  2. Step 2: Convert to fraction form
    26,678.51/40,037.50 = 12,638.57/x
  3. Step 3: Cross multiply
    26,678.51x = 40,037.50 × 12,638.57
  4. Step 4: Simplify right side
    26,678.51x = 506,016,748.67
  5. Step 5: Solve for x
    x = 506,016,748.67/26,678.51
  6. Step 6: Final answer
    x = 18,967.20

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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.