Home / 31,062.23-42,866.57-16,915.08

Finding the Fourth Proportional to 31,062.23, 42,866.57 and 16,915.08

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Solution

The fourth proportional to 31,062.23, 42,866.57 and 16,915.08 is: 23,343.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,062.23 : 42,866.57 = 16,915.08 : x
  2. Step 2: Convert to fraction form
    31,062.23/42,866.57 = 16,915.08/x
  3. Step 3: Cross multiply
    31,062.23x = 42,866.57 × 16,915.08
  4. Step 4: Simplify right side
    31,062.23x = 725,091,327.64
  5. Step 5: Solve for x
    x = 725,091,327.64/31,062.23
  6. Step 6: Final answer
    x = 23,343.18

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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.