Home / 21,386.88-32,054.40-9,688.32

Finding the Fourth Proportional to 21,386.88, 32,054.40 and 9,688.32

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Solution

The fourth proportional to 21,386.88, 32,054.40 and 9,688.32 is: 14,520.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386.88 : 32,054.40 = 9,688.32 : x
  2. Step 2: Convert to fraction form
    21,386.88/32,054.40 = 9,688.32/x
  3. Step 3: Cross multiply
    21,386.88x = 32,054.40 × 9,688.32
  4. Step 4: Simplify right side
    21,386.88x = 310,553,284.61
  5. Step 5: Solve for x
    x = 310,553,284.61/21,386.88
  6. Step 6: Final answer
    x = 14,520.74

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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.