Home / 23,420.61-32,320.13-12,810.11

Finding the Fourth Proportional to 23,420.61, 32,320.13 and 12,810.11

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Solution

The fourth proportional to 23,420.61, 32,320.13 and 12,810.11 is: 17,677.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,420.61 : 32,320.13 = 12,810.11 : x
  2. Step 2: Convert to fraction form
    23,420.61/32,320.13 = 12,810.11/x
  3. Step 3: Cross multiply
    23,420.61x = 32,320.13 × 12,810.11
  4. Step 4: Simplify right side
    23,420.61x = 414,024,194.86
  5. Step 5: Solve for x
    x = 414,024,194.86/23,420.61
  6. Step 6: Final answer
    x = 17,677.77

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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.