Home / 19,971.02-29,792.97-19,428.07

Finding the Fourth Proportional to 19,971.02, 29,792.97 and 19,428.07

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Solution

The fourth proportional to 19,971.02, 29,792.97 and 19,428.07 is: 28,983.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.02 : 29,792.97 = 19,428.07 : x
  2. Step 2: Convert to fraction form
    19,971.02/29,792.97 = 19,428.07/x
  3. Step 3: Cross multiply
    19,971.02x = 29,792.97 × 19,428.07
  4. Step 4: Simplify right side
    19,971.02x = 578,819,905.04
  5. Step 5: Solve for x
    x = 578,819,905.04/19,971.02
  6. Step 6: Final answer
    x = 28,983.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.