Home / 39,988.94-59,897.13-18,897.15

Finding the Fourth Proportional to 39,988.94, 59,897.13 and 18,897.15

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Solution

The fourth proportional to 39,988.94, 59,897.13 and 18,897.15 is: 28,304.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,988.94 : 59,897.13 = 18,897.15 : x
  2. Step 2: Convert to fraction form
    39,988.94/59,897.13 = 18,897.15/x
  3. Step 3: Cross multiply
    39,988.94x = 59,897.13 × 18,897.15
  4. Step 4: Simplify right side
    39,988.94x = 1,131,885,050.18
  5. Step 5: Solve for x
    x = 1,131,885,050.18/39,988.94
  6. Step 6: Final answer
    x = 28,304.96

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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.