Home / 28,006.34-42,017.69-8,285.40

Finding the Fourth Proportional to 28,006.34, 42,017.69 and 8,285.40

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Solution

The fourth proportional to 28,006.34, 42,017.69 and 8,285.40 is: 12,430.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006.34 : 42,017.69 = 8,285.40 : x
  2. Step 2: Convert to fraction form
    28,006.34/42,017.69 = 8,285.40/x
  3. Step 3: Cross multiply
    28,006.34x = 42,017.69 × 8,285.40
  4. Step 4: Simplify right side
    28,006.34x = 348,133,389.44
  5. Step 5: Solve for x
    x = 348,133,389.44/28,006.34
  6. Step 6: Final answer
    x = 12,430.52

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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.