Home / 27,754.42-38,312.50-18,814.18

Finding the Fourth Proportional to 27,754.42, 38,312.50 and 18,814.18

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Solution

The fourth proportional to 27,754.42, 38,312.50 and 18,814.18 is: 25,971.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,754.42 : 38,312.50 = 18,814.18 : x
  2. Step 2: Convert to fraction form
    27,754.42/38,312.50 = 18,814.18/x
  3. Step 3: Cross multiply
    27,754.42x = 38,312.50 × 18,814.18
  4. Step 4: Simplify right side
    27,754.42x = 720,818,271.25
  5. Step 5: Solve for x
    x = 720,818,271.25/27,754.42
  6. Step 6: Final answer
    x = 25,971.30

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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.