Home / 21,389.49-32,088.81-6,397.79

Finding the Fourth Proportional to 21,389.49, 32,088.81 and 6,397.79

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Solution

The fourth proportional to 21,389.49, 32,088.81 and 6,397.79 is: 9,598.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,389.49 : 32,088.81 = 6,397.79 : x
  2. Step 2: Convert to fraction form
    21,389.49/32,088.81 = 6,397.79/x
  3. Step 3: Cross multiply
    21,389.49x = 32,088.81 × 6,397.79
  4. Step 4: Simplify right side
    21,389.49x = 205,297,307.29
  5. Step 5: Solve for x
    x = 205,297,307.29/21,389.49
  6. Step 6: Final answer
    x = 9,598.05

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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.