Home / 31,928.02-47,892.05-13,187.46

Finding the Fourth Proportional to 31,928.02, 47,892.05 and 13,187.46

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Solution

The fourth proportional to 31,928.02, 47,892.05 and 13,187.46 is: 19,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,928.02 : 47,892.05 = 13,187.46 : x
  2. Step 2: Convert to fraction form
    31,928.02/47,892.05 = 13,187.46/x
  3. Step 3: Cross multiply
    31,928.02x = 47,892.05 × 13,187.46
  4. Step 4: Simplify right side
    31,928.02x = 631,574,547.49
  5. Step 5: Solve for x
    x = 631,574,547.49/31,928.02
  6. Step 6: Final answer
    x = 19,781.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.