Home / 42,446.77-63,670.23-12,864.86

Finding the Fourth Proportional to 42,446.77, 63,670.23 and 12,864.86

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Solution

The fourth proportional to 42,446.77, 63,670.23 and 12,864.86 is: 19,297.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,446.77 : 63,670.23 = 12,864.86 : x
  2. Step 2: Convert to fraction form
    42,446.77/63,670.23 = 12,864.86/x
  3. Step 3: Cross multiply
    42,446.77x = 63,670.23 × 12,864.86
  4. Step 4: Simplify right side
    42,446.77x = 819,108,595.12
  5. Step 5: Solve for x
    x = 819,108,595.12/42,446.77
  6. Step 6: Final answer
    x = 19,297.31

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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.