Home / 39,988.04-54,783.36-38,492.76

Finding the Fourth Proportional to 39,988.04, 54,783.36 and 38,492.76

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Solution

The fourth proportional to 39,988.04, 54,783.36 and 38,492.76 is: 52,734.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,988.04 : 54,783.36 = 38,492.76 : x
  2. Step 2: Convert to fraction form
    39,988.04/54,783.36 = 38,492.76/x
  3. Step 3: Cross multiply
    39,988.04x = 54,783.36 × 38,492.76
  4. Step 4: Simplify right side
    39,988.04x = 2,108,762,728.47
  5. Step 5: Solve for x
    x = 2,108,762,728.47/39,988.04
  6. Step 6: Final answer
    x = 52,734.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.