Home / 28,030.51-38,672.40-17,964.50

Finding the Fourth Proportional to 28,030.51, 38,672.40 and 17,964.50

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Solution

The fourth proportional to 28,030.51, 38,672.40 and 17,964.50 is: 24,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.51 : 38,672.40 = 17,964.50 : x
  2. Step 2: Convert to fraction form
    28,030.51/38,672.40 = 17,964.50/x
  3. Step 3: Cross multiply
    28,030.51x = 38,672.40 × 17,964.50
  4. Step 4: Simplify right side
    28,030.51x = 694,730,400.60
  5. Step 5: Solve for x
    x = 694,730,400.60/28,030.51
  6. Step 6: Final answer
    x = 24,784.79

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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.