Home / 31,416.24-47,109.60-12,681.12

Finding the Fourth Proportional to 31,416.24, 47,109.60 and 12,681.12

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Solution

The fourth proportional to 31,416.24, 47,109.60 and 12,681.12 is: 19,015.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,416.24 : 47,109.60 = 12,681.12 : x
  2. Step 2: Convert to fraction form
    31,416.24/47,109.60 = 12,681.12/x
  3. Step 3: Cross multiply
    31,416.24x = 47,109.60 × 12,681.12
  4. Step 4: Simplify right side
    31,416.24x = 597,402,490.75
  5. Step 5: Solve for x
    x = 597,402,490.75/31,416.24
  6. Step 6: Final answer
    x = 19,015.72

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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.