Home / 21,567.58-32,340.42-9,870.78

Finding the Fourth Proportional to 21,567.58, 32,340.42 and 9,870.78

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Solution

The fourth proportional to 21,567.58, 32,340.42 and 9,870.78 is: 14,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,567.58 : 32,340.42 = 9,870.78 : x
  2. Step 2: Convert to fraction form
    21,567.58/32,340.42 = 9,870.78/x
  3. Step 3: Cross multiply
    21,567.58x = 32,340.42 × 9,870.78
  4. Step 4: Simplify right side
    21,567.58x = 319,225,170.93
  5. Step 5: Solve for x
    x = 319,225,170.93/21,567.58
  6. Step 6: Final answer
    x = 14,801.16

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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.