Home / 28,030.79-38,691.86-16,703.84

Finding the Fourth Proportional to 28,030.79, 38,691.86 and 16,703.84

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Solution

The fourth proportional to 28,030.79, 38,691.86 and 16,703.84 is: 23,056.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.79 : 38,691.86 = 16,703.84 : x
  2. Step 2: Convert to fraction form
    28,030.79/38,691.86 = 16,703.84/x
  3. Step 3: Cross multiply
    28,030.79x = 38,691.86 × 16,703.84
  4. Step 4: Simplify right side
    28,030.79x = 646,302,663.46
  5. Step 5: Solve for x
    x = 646,302,663.46/28,030.79
  6. Step 6: Final answer
    x = 23,056.88

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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.