Home / 21,767.56-30,041.75-12,210.08

Finding the Fourth Proportional to 21,767.56, 30,041.75 and 12,210.08

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Solution

The fourth proportional to 21,767.56, 30,041.75 and 12,210.08 is: 16,851.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,767.56 : 30,041.75 = 12,210.08 : x
  2. Step 2: Convert to fraction form
    21,767.56/30,041.75 = 12,210.08/x
  3. Step 3: Cross multiply
    21,767.56x = 30,041.75 × 12,210.08
  4. Step 4: Simplify right side
    21,767.56x = 366,812,051.16
  5. Step 5: Solve for x
    x = 366,812,051.16/21,767.56
  6. Step 6: Final answer
    x = 16,851.32

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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.