Home / 22,945.86-31,666.68-12,875.13

Finding the Fourth Proportional to 22,945.86, 31,666.68 and 12,875.13

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Solution

The fourth proportional to 22,945.86, 31,666.68 and 12,875.13 is: 17,768.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,945.86 : 31,666.68 = 12,875.13 : x
  2. Step 2: Convert to fraction form
    22,945.86/31,666.68 = 12,875.13/x
  3. Step 3: Cross multiply
    22,945.86x = 31,666.68 × 12,875.13
  4. Step 4: Simplify right side
    22,945.86x = 407,712,621.67
  5. Step 5: Solve for x
    x = 407,712,621.67/22,945.86
  6. Step 6: Final answer
    x = 17,768.46

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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.