Home / 35,421.75-48,877.74-20,313.63

Finding the Fourth Proportional to 35,421.75, 48,877.74 and 20,313.63

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Solution

The fourth proportional to 35,421.75, 48,877.74 and 20,313.63 is: 28,030.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,421.75 : 48,877.74 = 20,313.63 : x
  2. Step 2: Convert to fraction form
    35,421.75/48,877.74 = 20,313.63/x
  3. Step 3: Cross multiply
    35,421.75x = 48,877.74 × 20,313.63
  4. Step 4: Simplify right side
    35,421.75x = 992,884,325.60
  5. Step 5: Solve for x
    x = 992,884,325.60/35,421.75
  6. Step 6: Final answer
    x = 28,030.36

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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.