Home / 35,379.84-53,061.80-10,421.60

Finding the Fourth Proportional to 35,379.84, 53,061.80 and 10,421.60

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Solution

The fourth proportional to 35,379.84, 53,061.80 and 10,421.60 is: 15,630.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,379.84 : 53,061.80 = 10,421.60 : x
  2. Step 2: Convert to fraction form
    35,379.84/53,061.80 = 10,421.60/x
  3. Step 3: Cross multiply
    35,379.84x = 53,061.80 × 10,421.60
  4. Step 4: Simplify right side
    35,379.84x = 552,988,854.88
  5. Step 5: Solve for x
    x = 552,988,854.88/35,379.84
  6. Step 6: Final answer
    x = 15,630.06

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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.