Home / 31,389.32-47,083.90-19,710.74

Finding the Fourth Proportional to 31,389.32, 47,083.90 and 19,710.74

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Solution

The fourth proportional to 31,389.32, 47,083.90 and 19,710.74 is: 29,566.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.32 : 47,083.90 = 19,710.74 : x
  2. Step 2: Convert to fraction form
    31,389.32/47,083.90 = 19,710.74/x
  3. Step 3: Cross multiply
    31,389.32x = 47,083.90 × 19,710.74
  4. Step 4: Simplify right side
    31,389.32x = 928,058,511.09
  5. Step 5: Solve for x
    x = 928,058,511.09/31,389.32
  6. Step 6: Final answer
    x = 29,566.06

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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.