Home / 51,021.48-70,392.24-31,888.20

Finding the Fourth Proportional to 51,021.48, 70,392.24 and 31,888.20

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Solution

The fourth proportional to 51,021.48, 70,392.24 and 31,888.20 is: 43,994.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,021.48 : 70,392.24 = 31,888.20 : x
  2. Step 2: Convert to fraction form
    51,021.48/70,392.24 = 31,888.20/x
  3. Step 3: Cross multiply
    51,021.48x = 70,392.24 × 31,888.20
  4. Step 4: Simplify right side
    51,021.48x = 2,244,681,827.57
  5. Step 5: Solve for x
    x = 2,244,681,827.57/51,021.48
  6. Step 6: Final answer
    x = 43,994.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.