Home / 31,487.96-47,242.86-13,970.06

Finding the Fourth Proportional to 31,487.96, 47,242.86 and 13,970.06

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Solution

The fourth proportional to 31,487.96, 47,242.86 and 13,970.06 is: 20,959.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.96 : 47,242.86 = 13,970.06 : x
  2. Step 2: Convert to fraction form
    31,487.96/47,242.86 = 13,970.06/x
  3. Step 3: Cross multiply
    31,487.96x = 47,242.86 × 13,970.06
  4. Step 4: Simplify right side
    31,487.96x = 659,985,588.77
  5. Step 5: Solve for x
    x = 659,985,588.77/31,487.96
  6. Step 6: Final answer
    x = 20,959.93

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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.