Home / 21,088.32-31,652.16-10,707.84

Finding the Fourth Proportional to 21,088.32, 31,652.16 and 10,707.84

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Solution

The fourth proportional to 21,088.32, 31,652.16 and 10,707.84 is: 16,071.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,088.32 : 31,652.16 = 10,707.84 : x
  2. Step 2: Convert to fraction form
    21,088.32/31,652.16 = 10,707.84/x
  3. Step 3: Cross multiply
    21,088.32x = 31,652.16 × 10,707.84
  4. Step 4: Simplify right side
    21,088.32x = 338,926,264.93
  5. Step 5: Solve for x
    x = 338,926,264.93/21,088.32
  6. Step 6: Final answer
    x = 16,071.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.