Home / 21,482.40-32,210.35-7,439.16

Finding the Fourth Proportional to 21,482.40, 32,210.35 and 7,439.16

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Solution

The fourth proportional to 21,482.40, 32,210.35 and 7,439.16 is: 11,154.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482.40 : 32,210.35 = 7,439.16 : x
  2. Step 2: Convert to fraction form
    21,482.40/32,210.35 = 7,439.16/x
  3. Step 3: Cross multiply
    21,482.40x = 32,210.35 × 7,439.16
  4. Step 4: Simplify right side
    21,482.40x = 239,617,947.31
  5. Step 5: Solve for x
    x = 239,617,947.31/21,482.40
  6. Step 6: Final answer
    x = 11,154.15

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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.