Home / 20,547.69-28,356.04-11,595.30

Finding the Fourth Proportional to 20,547.69, 28,356.04 and 11,595.30

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Solution

The fourth proportional to 20,547.69, 28,356.04 and 11,595.30 is: 16,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.69 : 28,356.04 = 11,595.30 : x
  2. Step 2: Convert to fraction form
    20,547.69/28,356.04 = 11,595.30/x
  3. Step 3: Cross multiply
    20,547.69x = 28,356.04 × 11,595.30
  4. Step 4: Simplify right side
    20,547.69x = 328,796,648.83
  5. Step 5: Solve for x
    x = 328,796,648.83/20,547.69
  6. Step 6: Final answer
    x = 16,001.64

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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.