Home / 31,026.96-42,803.34-20,952.18

Finding the Fourth Proportional to 31,026.96, 42,803.34 and 20,952.18

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Solution

The fourth proportional to 31,026.96, 42,803.34 and 20,952.18 is: 28,904.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,026.96 : 42,803.34 = 20,952.18 : x
  2. Step 2: Convert to fraction form
    31,026.96/42,803.34 = 20,952.18/x
  3. Step 3: Cross multiply
    31,026.96x = 42,803.34 × 20,952.18
  4. Step 4: Simplify right side
    31,026.96x = 896,823,284.28
  5. Step 5: Solve for x
    x = 896,823,284.28/31,026.96
  6. Step 6: Final answer
    x = 28,904.65

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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.