Home / 31,632.04-47,430.12-12,890.14

Finding the Fourth Proportional to 31,632.04, 47,430.12 and 12,890.14

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Solution

The fourth proportional to 31,632.04, 47,430.12 and 12,890.14 is: 19,327.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,632.04 : 47,430.12 = 12,890.14 : x
  2. Step 2: Convert to fraction form
    31,632.04/47,430.12 = 12,890.14/x
  3. Step 3: Cross multiply
    31,632.04x = 47,430.12 × 12,890.14
  4. Step 4: Simplify right side
    31,632.04x = 611,380,708.02
  5. Step 5: Solve for x
    x = 611,380,708.02/31,632.04
  6. Step 6: Final answer
    x = 19,327.89

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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.