Home / 30,851.40-42,574.74-16,703.94

Finding the Fourth Proportional to 30,851.40, 42,574.74 and 16,703.94

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Solution

The fourth proportional to 30,851.40, 42,574.74 and 16,703.94 is: 23,051.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,851.40 : 42,574.74 = 16,703.94 : x
  2. Step 2: Convert to fraction form
    30,851.40/42,574.74 = 16,703.94/x
  3. Step 3: Cross multiply
    30,851.40x = 42,574.74 × 16,703.94
  4. Step 4: Simplify right side
    30,851.40x = 711,165,902.48
  5. Step 5: Solve for x
    x = 711,165,902.48/30,851.40
  6. Step 6: Final answer
    x = 23,051.33

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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.