Home / 21,420.26-32,127.96-13,547.06

Finding the Fourth Proportional to 21,420.26, 32,127.96 and 13,547.06

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Solution

The fourth proportional to 21,420.26, 32,127.96 and 13,547.06 is: 20,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420.26 : 32,127.96 = 13,547.06 : x
  2. Step 2: Convert to fraction form
    21,420.26/32,127.96 = 13,547.06/x
  3. Step 3: Cross multiply
    21,420.26x = 32,127.96 × 13,547.06
  4. Step 4: Simplify right side
    21,420.26x = 435,239,401.80
  5. Step 5: Solve for x
    x = 435,239,401.80/21,420.26
  6. Step 6: Final answer
    x = 20,319.05

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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.