Home / 31,374.12-47,050.74-12,649.32

Finding the Fourth Proportional to 31,374.12, 47,050.74 and 12,649.32

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Solution

The fourth proportional to 31,374.12, 47,050.74 and 12,649.32 is: 18,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,374.12 : 47,050.74 = 12,649.32 : x
  2. Step 2: Convert to fraction form
    31,374.12/47,050.74 = 12,649.32/x
  3. Step 3: Cross multiply
    31,374.12x = 47,050.74 × 12,649.32
  4. Step 4: Simplify right side
    31,374.12x = 595,159,866.50
  5. Step 5: Solve for x
    x = 595,159,866.50/31,374.12
  6. Step 6: Final answer
    x = 18,969.77

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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.