Home / 31,312.40-46,980.50-18,841.03

Finding the Fourth Proportional to 31,312.40, 46,980.50 and 18,841.03

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Solution

The fourth proportional to 31,312.40, 46,980.50 and 18,841.03 is: 28,268.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,312.40 : 46,980.50 = 18,841.03 : x
  2. Step 2: Convert to fraction form
    31,312.40/46,980.50 = 18,841.03/x
  3. Step 3: Cross multiply
    31,312.40x = 46,980.50 × 18,841.03
  4. Step 4: Simplify right side
    31,312.40x = 885,160,798.26
  5. Step 5: Solve for x
    x = 885,160,798.26/31,312.40
  6. Step 6: Final answer
    x = 28,268.70

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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.