Home / 28,006.56-38,628.90-19,038.42

Finding the Fourth Proportional to 28,006.56, 38,628.90 and 19,038.42

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Solution

The fourth proportional to 28,006.56, 38,628.90 and 19,038.42 is: 26,259.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006.56 : 38,628.90 = 19,038.42 : x
  2. Step 2: Convert to fraction form
    28,006.56/38,628.90 = 19,038.42/x
  3. Step 3: Cross multiply
    28,006.56x = 38,628.90 × 19,038.42
  4. Step 4: Simplify right side
    28,006.56x = 735,433,222.34
  5. Step 5: Solve for x
    x = 735,433,222.34/28,006.56
  6. Step 6: Final answer
    x = 26,259.32

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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.