Home / 38,895.40-53,712.48-30,995.76

Finding the Fourth Proportional to 38,895.40, 53,712.48 and 30,995.76

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Solution

The fourth proportional to 38,895.40, 53,712.48 and 30,995.76 is: 42,803.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,895.40 : 53,712.48 = 30,995.76 : x
  2. Step 2: Convert to fraction form
    38,895.40/53,712.48 = 30,995.76/x
  3. Step 3: Cross multiply
    38,895.40x = 53,712.48 × 30,995.76
  4. Step 4: Simplify right side
    38,895.40x = 1,664,859,139.08
  5. Step 5: Solve for x
    x = 1,664,859,139.08/38,895.40
  6. Step 6: Final answer
    x = 42,803.50

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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.