Home / 21,386.68-32,071.80-7,344.08

Finding the Fourth Proportional to 21,386.68, 32,071.80 and 7,344.08

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Solution

The fourth proportional to 21,386.68, 32,071.80 and 7,344.08 is: 11,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386.68 : 32,071.80 = 7,344.08 : x
  2. Step 2: Convert to fraction form
    21,386.68/32,071.80 = 7,344.08/x
  3. Step 3: Cross multiply
    21,386.68x = 32,071.80 × 7,344.08
  4. Step 4: Simplify right side
    21,386.68x = 235,537,864.94
  5. Step 5: Solve for x
    x = 235,537,864.94/21,386.68
  6. Step 6: Final answer
    x = 11,013.30

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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.