Home / 35,487.78-53,230.50-14,421.57

Finding the Fourth Proportional to 35,487.78, 53,230.50 and 14,421.57

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Solution

The fourth proportional to 35,487.78, 53,230.50 and 14,421.57 is: 21,631.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,487.78 : 53,230.50 = 14,421.57 : x
  2. Step 2: Convert to fraction form
    35,487.78/53,230.50 = 14,421.57/x
  3. Step 3: Cross multiply
    35,487.78x = 53,230.50 × 14,421.57
  4. Step 4: Simplify right side
    35,487.78x = 767,667,381.89
  5. Step 5: Solve for x
    x = 767,667,381.89/35,487.78
  6. Step 6: Final answer
    x = 21,631.88

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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.