Home / 39,430.29-54,415.02-21,526.46

Finding the Fourth Proportional to 39,430.29, 54,415.02 and 21,526.46

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Solution

The fourth proportional to 39,430.29, 54,415.02 and 21,526.46 is: 29,707.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,430.29 : 54,415.02 = 21,526.46 : x
  2. Step 2: Convert to fraction form
    39,430.29/54,415.02 = 21,526.46/x
  3. Step 3: Cross multiply
    39,430.29x = 54,415.02 × 21,526.46
  4. Step 4: Simplify right side
    39,430.29x = 1,171,362,479.35
  5. Step 5: Solve for x
    x = 1,171,362,479.35/39,430.29
  6. Step 6: Final answer
    x = 29,707.17

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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.