Home / 22,421.39-30,943.70-16,746.28

Finding the Fourth Proportional to 22,421.39, 30,943.70 and 16,746.28

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Solution

The fourth proportional to 22,421.39, 30,943.70 and 16,746.28 is: 23,111.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,421.39 : 30,943.70 = 16,746.28 : x
  2. Step 2: Convert to fraction form
    22,421.39/30,943.70 = 16,746.28/x
  3. Step 3: Cross multiply
    22,421.39x = 30,943.70 × 16,746.28
  4. Step 4: Simplify right side
    22,421.39x = 518,191,780.70
  5. Step 5: Solve for x
    x = 518,191,780.70/22,421.39
  6. Step 6: Final answer
    x = 23,111.50

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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.