Home / 42,378.33-58,492.85-28,955.01

Finding the Fourth Proportional to 42,378.33, 58,492.85 and 28,955.01

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Solution

The fourth proportional to 42,378.33, 58,492.85 and 28,955.01 is: 39,965.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,378.33 : 58,492.85 = 28,955.01 : x
  2. Step 2: Convert to fraction form
    42,378.33/58,492.85 = 28,955.01/x
  3. Step 3: Cross multiply
    42,378.33x = 58,492.85 × 28,955.01
  4. Step 4: Simplify right side
    42,378.33x = 1,693,660,911.90
  5. Step 5: Solve for x
    x = 1,693,660,911.90/42,378.33
  6. Step 6: Final answer
    x = 39,965.26

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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.