Home / 31,130.67-42,960.13-17,701.93

Finding the Fourth Proportional to 31,130.67, 42,960.13 and 17,701.93

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Solution

The fourth proportional to 31,130.67, 42,960.13 and 17,701.93 is: 24,428.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,130.67 : 42,960.13 = 17,701.93 : x
  2. Step 2: Convert to fraction form
    31,130.67/42,960.13 = 17,701.93/x
  3. Step 3: Cross multiply
    31,130.67x = 42,960.13 × 17,701.93
  4. Step 4: Simplify right side
    31,130.67x = 760,477,214.05
  5. Step 5: Solve for x
    x = 760,477,214.05/31,130.67
  6. Step 6: Final answer
    x = 24,428.55

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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.