Home / 35,486.18-53,220.19-10,520.39

Finding the Fourth Proportional to 35,486.18, 53,220.19 and 10,520.39

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Solution

The fourth proportional to 35,486.18, 53,220.19 and 10,520.39 is: 15,777.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,486.18 : 53,220.19 = 10,520.39 : x
  2. Step 2: Convert to fraction form
    35,486.18/53,220.19 = 10,520.39/x
  3. Step 3: Cross multiply
    35,486.18x = 53,220.19 × 10,520.39
  4. Step 4: Simplify right side
    35,486.18x = 559,897,154.67
  5. Step 5: Solve for x
    x = 559,897,154.67/35,486.18
  6. Step 6: Final answer
    x = 15,777.89

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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.