Home / 31,700.40-47,547.84-19,216.75

Finding the Fourth Proportional to 31,700.40, 47,547.84 and 19,216.75

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Solution

The fourth proportional to 31,700.40, 47,547.84 and 19,216.75 is: 28,823.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,700.40 : 47,547.84 = 19,216.75 : x
  2. Step 2: Convert to fraction form
    31,700.40/47,547.84 = 19,216.75/x
  3. Step 3: Cross multiply
    31,700.40x = 47,547.84 × 19,216.75
  4. Step 4: Simplify right side
    31,700.40x = 913,714,954.32
  5. Step 5: Solve for x
    x = 913,714,954.32/31,700.40
  6. Step 6: Final answer
    x = 28,823.45

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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.