Home / 21,094.16-31,643.40-7,957.58

Finding the Fourth Proportional to 21,094.16, 31,643.40 and 7,957.58

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Solution

The fourth proportional to 21,094.16, 31,643.40 and 7,957.58 is: 11,937.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,094.16 : 31,643.40 = 7,957.58 : x
  2. Step 2: Convert to fraction form
    21,094.16/31,643.40 = 7,957.58/x
  3. Step 3: Cross multiply
    21,094.16x = 31,643.40 × 7,957.58
  4. Step 4: Simplify right side
    21,094.16x = 251,804,886.97
  5. Step 5: Solve for x
    x = 251,804,886.97/21,094.16
  6. Step 6: Final answer
    x = 11,937.18

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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.