Home / 26,784.10-40,172.28-18,754.51

Finding the Fourth Proportional to 26,784.10, 40,172.28 and 18,754.51

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Solution

The fourth proportional to 26,784.10, 40,172.28 and 18,754.51 is: 28,129.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,784.10 : 40,172.28 = 18,754.51 : x
  2. Step 2: Convert to fraction form
    26,784.10/40,172.28 = 18,754.51/x
  3. Step 3: Cross multiply
    26,784.10x = 40,172.28 × 18,754.51
  4. Step 4: Simplify right side
    26,784.10x = 753,411,426.98
  5. Step 5: Solve for x
    x = 753,411,426.98/26,784.10
  6. Step 6: Final answer
    x = 28,129.05

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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.