Home / 30,421.17-41,980.95-16,809.16

Finding the Fourth Proportional to 30,421.17, 41,980.95 and 16,809.16

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Solution

The fourth proportional to 30,421.17, 41,980.95 and 16,809.16 is: 23,196.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,421.17 : 41,980.95 = 16,809.16 : x
  2. Step 2: Convert to fraction form
    30,421.17/41,980.95 = 16,809.16/x
  3. Step 3: Cross multiply
    30,421.17x = 41,980.95 × 16,809.16
  4. Step 4: Simplify right side
    30,421.17x = 705,664,597.34
  5. Step 5: Solve for x
    x = 705,664,597.34/30,421.17
  6. Step 6: Final answer
    x = 23,196.50

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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.