Home / 21,567.20-32,339.86-9,870.39

Finding the Fourth Proportional to 21,567.20, 32,339.86 and 9,870.39

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Solution

The fourth proportional to 21,567.20, 32,339.86 and 9,870.39 is: 14,800.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,567.20 : 32,339.86 = 9,870.39 : x
  2. Step 2: Convert to fraction form
    21,567.20/32,339.86 = 9,870.39/x
  3. Step 3: Cross multiply
    21,567.20x = 32,339.86 × 9,870.39
  4. Step 4: Simplify right side
    21,567.20x = 319,207,030.75
  5. Step 5: Solve for x
    x = 319,207,030.75/21,567.20
  6. Step 6: Final answer
    x = 14,800.58

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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.