Home / 28,010.04-42,009.18-12,417.72

Finding the Fourth Proportional to 28,010.04, 42,009.18 and 12,417.72

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Solution

The fourth proportional to 28,010.04, 42,009.18 and 12,417.72 is: 18,623.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.04 : 42,009.18 = 12,417.72 : x
  2. Step 2: Convert to fraction form
    28,010.04/42,009.18 = 12,417.72/x
  3. Step 3: Cross multiply
    28,010.04x = 42,009.18 × 12,417.72
  4. Step 4: Simplify right side
    28,010.04x = 521,658,234.67
  5. Step 5: Solve for x
    x = 521,658,234.67/28,010.04
  6. Step 6: Final answer
    x = 18,623.97

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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.