Home / 31,407.08-47,117.30-9,218.75

Finding the Fourth Proportional to 31,407.08, 47,117.30 and 9,218.75

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Solution

The fourth proportional to 31,407.08, 47,117.30 and 9,218.75 is: 13,830.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,407.08 : 47,117.30 = 9,218.75 : x
  2. Step 2: Convert to fraction form
    31,407.08/47,117.30 = 9,218.75/x
  3. Step 3: Cross multiply
    31,407.08x = 47,117.30 × 9,218.75
  4. Step 4: Simplify right side
    31,407.08x = 434,362,327.69
  5. Step 5: Solve for x
    x = 434,362,327.69/31,407.08
  6. Step 6: Final answer
    x = 13,830.08

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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.