Home / 21,340.48-32,013.80-6,547.20

Finding the Fourth Proportional to 21,340.48, 32,013.80 and 6,547.20

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Solution

The fourth proportional to 21,340.48, 32,013.80 and 6,547.20 is: 9,821.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340.48 : 32,013.80 = 6,547.20 : x
  2. Step 2: Convert to fraction form
    21,340.48/32,013.80 = 6,547.20/x
  3. Step 3: Cross multiply
    21,340.48x = 32,013.80 × 6,547.20
  4. Step 4: Simplify right side
    21,340.48x = 209,600,751.36
  5. Step 5: Solve for x
    x = 209,600,751.36/21,340.48
  6. Step 6: Final answer
    x = 9,821.74

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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.