Home / 42,686.67-64,030.02-11,521.92

Finding the Fourth Proportional to 42,686.67, 64,030.02 and 11,521.92

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Solution

The fourth proportional to 42,686.67, 64,030.02 and 11,521.92 is: 17,282.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,686.67 : 64,030.02 = 11,521.92 : x
  2. Step 2: Convert to fraction form
    42,686.67/64,030.02 = 11,521.92/x
  3. Step 3: Cross multiply
    42,686.67x = 64,030.02 × 11,521.92
  4. Step 4: Simplify right side
    42,686.67x = 737,748,768.04
  5. Step 5: Solve for x
    x = 737,748,768.04/42,686.67
  6. Step 6: Final answer
    x = 17,282.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.