Home / 19,212.90-28,775.03-18,547.98

Finding the Fourth Proportional to 19,212.90, 28,775.03 and 18,547.98

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Solution

The fourth proportional to 19,212.90, 28,775.03 and 18,547.98 is: 27,779.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.90 : 28,775.03 = 18,547.98 : x
  2. Step 2: Convert to fraction form
    19,212.90/28,775.03 = 18,547.98/x
  3. Step 3: Cross multiply
    19,212.90x = 28,775.03 × 18,547.98
  4. Step 4: Simplify right side
    19,212.90x = 533,718,588.20
  5. Step 5: Solve for x
    x = 533,718,588.20/19,212.90
  6. Step 6: Final answer
    x = 27,779.18

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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.